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6.1

F5 BIG-IP APM allows script injection in admin logs

CVE-2016-9257 · published 9 years ago
Summary

The Access Policy Manager version 12.0.0 to 12.1.2 can be tricked by anyone on the Internet to insert malicious JavaScript into a request. When an administrator later views the system logs, the hidden script runs in their browser, potentially giving the attacker access to the admin's session. Update to a fixed version or apply the vendor's recommended patch as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
f5 big-ip_access_policy_manager 12.0.0
12.1.0
12.1.1
12.1.2
cpe:2.3:a:f5:big-ip_access_policy_manager:12.0.0:*:*:*:*:*:*:*
Original advisory text
In F5 BIG-IP APM 12.0.0 through 12.1.2, non-authenticated users may be able to inject JavaScript into a request that will then be rendered and executed in the context of the Administrative user whe...
In F5 BIG-IP APM 12.0.0 through 12.1.2, non-authenticated users may be able to inject JavaScript into a request that will then be rendered and executed in the context of the Administrative user when the Administrative user is viewing the Access System Logs, allowing the non-authenticated user to carry out a Cross Site Scripting (XSS) attack against the Administrative user.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
6.1 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published9 May 2017
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2016-9257 · NVD
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