CVE-2022-0637
open redirect in pollbot
open redirect in pollbot (pollbot.services.mozilla.com) in versions before 1.4.6
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
open redirect in pollbot (pollbot.services.mozilla.com) in versions before 1.4.6
- Record
CVE-2022-0637- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List
open redirect in pollbot (pollbot.services.mozilla.com) in versions before 1.4.6
- Record
CVE-2022-0637- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
EUVDEUVD-2022-1203
open redirect in pollbot (pollbot.services.mozilla.com) in versions before 1.4.6
- Record
EUVD-2022-1203- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vg27-hr3v-3cqv
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.
- Record
GHSA-vg27-hr3v-3cqv- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
open redirect in pollbot (pollbot.services.mozilla.com) in versions before 1.4.6
- Record
CVE-2022-0637- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-vg27-hr3v-3cqv
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.
- Record
GHSA-vg27-hr3v-3cqv- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSVPYSEC-2026-738
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.
- Record
PYSEC-2026-738- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-0637 is a medium vulnerability (CVSS 6.1) in Mozilla Pollbot, published February 16, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. Fixed in pollbot 1.4.6.
References
bugzilla.mozilla.org/show_bug.cgi?id=1753838
github.com/mozilla/PollBot/security/advisories/GHSA-vg27-hr3v-3cqv
nvd.nist.gov/vuln/detail/CVE-2022-0637