CVE-2012-4885

medium
Published 2012-09-09 ยท Modified 2026-04-29
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
5.0

Description

The wikitext parser in MediaWiki 1.17.x before 1.17.3 and 1.18.x before 1.18.2 allows remote attackers to cause a denial of service (infinite loop) via certain input, as demonstrated by the padleft function.

Predictions

Exploit likelihood
20%
Patch ETA
โ€”

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 โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed1:1.19.0-1
debian debianbullseyefixed1:1.19.0-1
debian debianforkyfixed1:1.19.0-1
debian debiansidfixed1:1.19.0-1
debian debiantrixiefixed1:1.19.0-1

Application impact

VendorProductVersionsFixed
mediawikimediawiki1.17
mediawikimediawiki1.17.0
mediawikimediawiki1.17.1
mediawikimediawiki1.17.2
mediawikimediawiki1.18
mediawikimediawiki1.18.0
mediawikimediawiki1.18.1

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.