Logged-out user script execution via reflected input
Published Oct 15, 2025 · Updated Oct 15, 2025
Reflected XSS in F5 BIG-IP APM allows remote attackers to execute JavaScript in the browser context of a targeted logged-out user. F5 identifies the vulnerable locus only as an undisclosed APM page; reflected attacker-controlled input reaches the page's response without sufficient neutralization. Exploitation requires active user interaction and an exposed APM browser page, and the consequence is bounded to script execution in the logged-out browser context.
Summary
What happened
Reflected XSS in F5 BIG-IP APM allows remote attackers to execute JavaScript in the browser context of a targeted logged-out user. F5 identifies the vulnerable locus only as an undisclosed APM page; reflected attacker-controlled input reaches the page's response without sufficient neutralization. Exploitation requires active user interaction and an exposed APM browser page, and the consequence is bounded to script execution in the logged-out browser context.
The record
- CVE
- CVE-2025-61933
- Published
- Oct 15, 2025
- Updated
- Oct 15, 2025
- Vendor
- F5 Networks
- Product
- BIG-IP
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 15, 2025CVE publishedPublication date reported by the CVE source.
- Oct 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=15.1.0 <15.1.10.8
- Affected versionversion=16.1.0 <16.1.6.1
- Affected versionversion=17.1.0 <17.1.3
- Affected versionversion=17.5.0 <17.5.1.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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