CVE-2012-4528

medium

Published 2012-12-28 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

6.0

Description

The mod_security2 module before 2.7.0 for the Apache HTTP Server allows remote attackers to bypass rules, and deliver arbitrary POST data to a PHP application, via a multipart request in which an invalid part precedes the crafted data.

Predictions

Exploit likelihood

20%

Patch ETA

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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.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-37949 remote linux verified

Bernhard Mueller · 2012-10-17

ModSecurity - 'POST' Security Bypass

Source code queued for fetch — refresh in a moment.

OS impact

Fedora Affected 1 release

Version	Status	Fixed in
18	Affected	—

SUSE Affected 3 releases

Version	Status	Fixed in
12.3	Affected	—
12.2	Affected	—
11.4	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.6.6-5`
sid	Fixed	`2.6.6-5`
forky	Fixed	`2.6.6-5`
bullseye	Fixed	`2.6.6-5`
bookworm	Fixed	`2.6.6-5`

Application impact

Vendor	Product	Versions	Fixed
trustwave	modsecurity	`{"endExcluding":"2.7.0"}`	`2.7.0`

References

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

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