CVE-2013-5976

What it is

Cross-site scripting (XSS) vulnerability in the access policy logout page (logout.inc) in F5 BIG-IP APM 10.1.0 through 10.2.4 and 11.1.0 through 11.3.0 allows remote attackers to inject arbitrary web script or HTML via the LastMRH_Session cookie.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

1.8% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2013-10-01 20:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:59 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.8% in the next 30 days (EPSS).
• Severity: 4.3 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2013-10-01 20:55 UTC

Last modified

2026-06-16 23:59 UTC

Exploit probability

1.8% · EPSS, next 30 days

Weakness

CWE-79 · Cross-site scripting

Record status

Modified

Affected

• f5 big-ip Access Policy Manager 10.1.0
• f5 big-ip Access Policy Manager 10.2.4
• f5 big-ip Access Policy Manager 11.0.0
• f5 big-ip Access Policy Manager 11.1.0
• f5 big-ip Access Policy Manager 11.3.0

Attack profile CVSS 2.0 · 4.3

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

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