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Fencer Intel
high 8.4

CVE-2019-6636 json

On BIG-IP (AFM, ASM) 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4, and 11.5.1-11.6.4, a stored cross-site scripting vul…

published 7y ago modified 4mo ago also EUVD-2019-16195

cvss
8.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

On BIG-IP (AFM, ASM) 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4, and 11.5.1-11.6.4, a stored cross-site scripting vulnerability in AFM feed list. In the worst case, an attacker can store a CSRF which results in code execution as the admin user. The level of user role which can perform this attack are resource administrator and administrator.

Patch / fix

  • f5 big-ip_advanced_firewall_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_application_security_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6

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Exploit prediction

0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.4 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
NVD 2.0 8.5 AV:N/AC:M/Au:S/C:C/I:C/A:C

Affected products

  • F5 BIG-IP (AFM, ASM)

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.