VIR Vulnerability Intelligence Relay

CVE-2011-4957

medium
Published 2012-06-27 · Modified 2026-04-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
5.0

Description

The make_clickable function in wp-includes/formatting.php in WordPress before 3.1.1 does not properly check URLs before passing them to the PCRE library, which allows remote attackers to cause a denial of service (crash) via a comment with a crafted URL that triggers many recursive calls.

Predictions

Exploit likelihood
20%
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 with source_tier=community-verified.

OS impact
debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 3.2.1+dfsg-1
sid Fixed 3.2.1+dfsg-1
forky Fixed 3.2.1+dfsg-1
bullseye Fixed 3.2.1+dfsg-1
bookworm Fixed 3.2.1+dfsg-1

Application impact
VendorProductVersionsFixed
wordpress wordpresswordpress{"endIncluding":"3.1"}
wordpress wordpresswordpress0.71
wordpress wordpresswordpress1.0
wordpress wordpresswordpress1.0.1
wordpress wordpresswordpress1.0.2
wordpress wordpresswordpress1.1.1
wordpress wordpresswordpress1.2
wordpress wordpresswordpress1.2.1
wordpress wordpresswordpress1.2.2
wordpress wordpresswordpress1.2.3
wordpress wordpresswordpress1.2.4
wordpress wordpresswordpress1.2.5
wordpress wordpresswordpress1.3
wordpress wordpresswordpress1.3.2
wordpress wordpresswordpress1.3.3
wordpress wordpresswordpress1.5
wordpress wordpresswordpress1.5.1
wordpress wordpresswordpress1.5.1.1
wordpress wordpresswordpress1.5.1.2
wordpress wordpresswordpress1.5.1.3
wordpress wordpresswordpress1.5.2
wordpress wordpresswordpress2.0
wordpress wordpresswordpress2.0.1
wordpress wordpresswordpress2.0.2
wordpress wordpresswordpress2.0.4
wordpress wordpresswordpress2.0.5
wordpress wordpresswordpress2.0.6
wordpress wordpresswordpress2.0.7
wordpress wordpresswordpress2.0.8
wordpress wordpresswordpress2.0.9
wordpress wordpresswordpress2.0.10
wordpress wordpresswordpress2.0.11
wordpress wordpresswordpress2.1
wordpress wordpresswordpress2.1.1
wordpress wordpresswordpress2.1.2
wordpress wordpresswordpress2.1.3
wordpress wordpresswordpress2.2
wordpress wordpresswordpress2.2.1
wordpress wordpresswordpress2.2.2
wordpress wordpresswordpress2.2.3
wordpress wordpresswordpress2.3
wordpress wordpresswordpress2.3.1
wordpress wordpresswordpress2.3.2
wordpress wordpresswordpress2.3.3
wordpress wordpresswordpress2.5
wordpress wordpresswordpress2.5.1
wordpress wordpresswordpress2.6
wordpress wordpresswordpress2.6.1
wordpress wordpresswordpress2.6.2
wordpress wordpresswordpress2.6.3
wordpress wordpresswordpress2.6.5
wordpress wordpresswordpress2.7
wordpress wordpresswordpress2.7.1
wordpress wordpresswordpress2.8
wordpress wordpresswordpress2.8.1
wordpress wordpresswordpress2.8.2
wordpress wordpresswordpress2.8.3
wordpress wordpresswordpress2.8.4
wordpress wordpresswordpress2.8.5
wordpress wordpresswordpress2.8.5.1
wordpress wordpresswordpress2.8.5.2
wordpress wordpresswordpress2.8.6
wordpress wordpresswordpress2.9
wordpress wordpresswordpress2.9.1
wordpress wordpresswordpress2.9.1.1
wordpress wordpresswordpress2.9.2
wordpress wordpresswordpress3.0
wordpress wordpresswordpress3.0.1
wordpress wordpresswordpress3.0.2
wordpress wordpresswordpress3.0.3
wordpress wordpresswordpress3.0.4
wordpress wordpresswordpress3.0.5
wordpress wordpresswordpress3.0.6

References

CWEs

CWE-20

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

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