CVE-2021-30458
medium
CVSS v3
—
CVSS v4 NEW
—
VIR risk
5.5
Description
Wikimedia Parsoid vulnerable to Cross-site Scripting (XSS)
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.35.2-1 | |
| debian | bookworm | fixed | 1:1.35.2-1 |
| debian | bullseye | fixed | 1:1.35.2-1 |
| debian | forky | fixed | 1:1.35.2-1 |
| debian | sid | fixed | 1:1.35.2-1 |
| debian | trixie | fixed | 1:1.35.2-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | wikimedia/parsoid | >=0.12,<0.12.2 | 0.12.2 |
| Packagist | wikimedia/parsoid | <0.11.1 | 0.11.1 |
References
- https://security-tracker.debian.org/tracker/CVE-2021-30458
- https://nvd.nist.gov/vuln/detail/CVE-2021-30458
- https://github.com/FriendsOfPHP/security-advisories/blob/master/wikimedia/parsoid/CVE-2021-30458.yaml
- https://github.com/wikimedia/mediawiki-services-parsoid
- https://phabricator.wikimedia.org/T279451
- https://security.gentoo.org/glsa/202107-40
- https://www.mediawiki.org/wiki/Parsoid
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.