High severity7.4NVD Advisory· Published Mar 8, 2021· Updated Jun 17, 2026
CVE-2021-21354
CVE-2021-21354
Description
Pollbot is open source software which "frees its human masters from the toilsome task of polling for the state of things during the Firefox release process." In Pollbot before version 1.4.4 there is an open redirection vulnerability in the path of "https://pollbot.services.mozilla.com/". An attacker can redirect anyone to malicious sites. To Reproduce type in this URL: "https://pollbot.services.mozilla.com//evil.com/". Affected versions will redirect to that website when you inject a payload like "//evil.com/". This is fixed in version 1.4.4.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:mozilla:pollbot:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mozilla:pollbot:*:*:*:*:*:*:*:*range: <1.4.4
- (no CPE)range: <1.4.4
- (no CPE)range: < 1.4.4
Patches
Vulnerability mechanics
References
6- github.com/mozilla/PollBot/commit/6db74a4fcbff258c7cdf51a6ff0724fc10c485e5nvdPatchThird Party Advisory
- github.com/mozilla/PollBot/pull/333nvdPatchThird Party Advisory
- github.com/mozilla/PollBot/security/advisories/GHSA-jhgx-wmq8-jc24nvdExploitThird Party Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions RequiredThird Party Advisory
- cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.htmlnvdThird Party Advisory
- github.com/mozilla/PollBot/releases/tag/v1.4.4nvdThird Party Advisory
News mentions
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