CVE-2018-7753
Description
An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren't properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide through unsanitized.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
bleachPyPI | >= 2.1.0, < 2.1.3 | 2.1.3 |
Affected products
2- ghsa-coords2 versions
>= 2.1.0, < 2.1.3+ 1 more
- (no CPE)range: >= 2.1.0, < 2.1.3
- (no CPE)range: < 6.1.0-1.5
Patches
Discovered fix commits and diffs is available to signed-in members. Sign in or create a free account to read it.
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
6- github.com/advisories/GHSA-m9mq-p2f9-cfqvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-7753ghsaADVISORY
- bugs.debian.org/892252ghsax_refsource_MISCWEB
- github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35efghsax_refsource_MISCWEB
- github.com/mozilla/bleach/releases/tag/v2.1.3ghsax_refsource_MISCWEB
- github.com/pypa/advisory-database/tree/main/vulns/bleach/PYSEC-2018-51.yamlghsaWEB
News mentions
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