CVE-2010-3770
Description
Multiple cross-site scripting (XSS) vulnerabilities in the rendering engine in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before 2.0.11, allow remote attackers to inject arbitrary web script or HTML via (1) x-mac-arabic, (2) x-mac-farsi, or (3) x-mac-hebrew characters that may be converted to angle brackets during rendering.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Rendering of x-mac-arabic, x-mac-farsi, and x-mac-hebrew characters in Firefox before 3.5.16/3.6.13 and SeaMonkey before 2.0.11 allows XSS by converting characters to angle brackets.
Vulnerability
Multiple cross-site scripting (XSS) vulnerabilities exist in the rendering engine of Mozilla Firefox before versions 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before version 2.0.11 [1][2]. The bug is triggered when the x-mac-arabic, x-mac-farsi, or x-mac-hebrew character encodings are used [1]. During rendering, certain characters in these encodings can be converted to angle brackets (< and >) [1]. A crafted web page using one of these encodings can inject arbitrary HTML or script into a page, bypassing the intended content security boundaries [1]. The affected code path is in the Mozilla Internationalization (i18n) module [1].
Exploitation
An attacker requires no authentication or special network position; the only needed user interaction is visiting a malicious web page [1][2]. By setting the meta charset to x-mac-farsi (or the other two encodings) and including a crafted string, an attacker can cause the rendering engine to convert certain Unicode characters into angle brackets, effectively injecting a `` tag [1]. A proof-of-concept was made public [1]. The exploit does not require any additional plugins or uncommon browser settings [1].
Impact
Successful exploitation allows an attacker to inject arbitrary HTML or JavaScript into the browser's rendering context [1][2]. This can lead to theft of cookies, session tokens, or other sensitive data, defacement of the web page, or redirection to malicious content [2]. The attacker operates within the security context of the vulnerable site, potentially gaining the same privileges as the user interacting with that site [2]. The severity was rated as moderate by Mozilla [1].
Mitigation
Mozilla addressed the issue in Firefox 3.5.16 and 3.6.13, released on December 9, 2010 [1][2]. SeaMonkey was fixed in version 2.0.11 [1]. Ubuntu updated firefox and xulrunner packages to the fixed versions [2]. Red Hat Enterprise Linux also provided updates via RHSA-2010-0966 [4]. Users should upgrade to the patched versions or apply the relevant vendor updates [2][4]. No reliable workaround is available other than applying the fix.
AI Insight generated on May 23, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
175cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 118 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <=3.5.15
- cpe:2.3:a:mozilla:firefox:0.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.10.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.9.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.0:preview_release:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5:beta1:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.5:beta2:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:1.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.18:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.19:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.20:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:2.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.11:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.12:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.13:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.14:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.5.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.11:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.12:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:3.6.9:*:*:*:*:*:*:*
- (no CPE)range: <3.5.16, <3.6.13
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*+ 55 more
- cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*range: <=2.0.10
- cpe:2.3:a:mozilla:seamonkey:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0:alpha:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.0:beta:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.11:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.12:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.13:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.14:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.15:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.16:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.17:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.18:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.19:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1:alpha:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.1:beta:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.5.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.5.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:1.5.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:alpha_1:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:alpha_2:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:alpha_3:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:beta_1:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:beta_2:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:2.0:rc2:*:*:*:*:*:*
- (no CPE)range: <2.0.11
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
18- www.mozilla.org/security/announce/2010/mfsa2010-84.htmlnvdPatchVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPatch
- lists.fedoraproject.org/pipermail/package-announce/2010-December/052022.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2010-December/052032.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2010-December/052502.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2010-December/052504.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2011-01/msg00002.htmlnvd
- secunia.com/advisories/42716nvd
- secunia.com/advisories/42818nvd
- support.avaya.com/css/P8/documents/100124650nvd
- www.debian.org/security/2010/dsa-2132nvd
- www.mandriva.com/security/advisoriesnvd
- www.redhat.com/support/errata/RHSA-2010-0966.htmlnvd
- www.securityfocus.com/bid/45353nvd
- www.securitytracker.com/idnvd
- www.ubuntu.com/usn/USN-1019-1nvd
- www.vupen.com/english/advisories/2011/0030nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12348nvd
News mentions
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