CVE-2011-5107

medium

Published 2012-08-23 · 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

5.3

Description

Cross-site scripting (XSS) vulnerability in post_alert.php in Alert Before Your Post plugin, possibly 0.1.1 and earlier, for WordPress allows remote attackers to inject arbitrary web script or HTML via the name parameter.

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-36323 webapps php verified text · 1 KB

Am!r · 2011-11-21

WordPress Plugin Alert Before Your Post - 'name' Cross-Site Scripting

text exploit Source: Exploit-DB

source: https://www.securityfocus.com/bid/50743/info

Alert Before Your Post plugin for WordPress is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. 

http://www.example.com/[path]/wp-content/plugins/alert-before-your-post/trunk/post_alert.php?name=[xss]

Application impact

Vendor	Product	Versions	Fixed
wordpress	alert_before_you_post	`{"endIncluding":"0.1.1"}`
wordpress	wordpress	`-`

References

CWEs

CWE-79

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

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