open redirect in pollbot
(From https://bugzilla.mozilla.org/show_bug.cgi?id=1753838)
Summary: There was an open redirection vulnerability in the path of:
https://pollbot.services.mozilla.com/ and https://pollbot.stage.mozaws.net/
Description: An attacker can redirect anyone to malicious sites.
Steps To Reproduce: Type in this URL:
https://pollbot.services.mozilla.com/%0a/evil.com/
It redirects to that website
evil.com
evil.com was used as an example but this could be any website. Note, the /%0a/ and trailing / are required.
Supporting Material/References: https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html
Impact
Attackers can serve malicious websites that steal passwords or download ransomware to their victims machine due to a redirect and there are a heap of other attack vectors.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pollbot | < 1.4.6 | 1.4.6 |
References
- https://github.com/mozilla/PollBot/security/advisories/GHSA-vg27-hr3v-3cqv
- https://nvd.nist.gov/vuln/detail/CVE-2022-0637
- https://github.com/mozilla/PollBot/pull/360
- https://github.com/mozilla/PollBot/commit/e39d8bec2df582ba525bb2e2f33c3ebc584d7ff8
- https://bugzilla.mozilla.org/show_bug.cgi?id=1753838
- https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2022-0637
- https://github.com/mozilla/PollBot
- https://pypi.org/project/pollbot
- https://github.com/advisories/GHSA-vg27-hr3v-3cqv
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-601- Platform
- Python (PyPI)
- Package
pollbot- Disclosed
- 16.02.2022
- Updated
- 11.10.2026 13:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-738 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-vg27-hr3v-3cqv - CC BY 4.0
Vulnerability history: pollbot
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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