CVE-2026-16775

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 8.4% of scored records. A rank, not a probability.

NVD base score

6.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

NVD analysis status

Deferred. NVD last modified this record on 2026-08-20.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-16 05:27Z19 DAYS AGO

Last updated

2026-08-17 17:10Z18 DAYS AGO

Reserved

2026-07-23

Assigning CNA

Wordfence

Record state

PUBLISHED

Severity

Medium (CVSS 6.4)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.2

Document digest

43b208876c9c08fd35b5ef7cda75c88a4a79340d26c53a68fc153ff5289f8bc6

• www.wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/ae039144-2c02-4a00-9fff-f4e90a6a8236?source=cve
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/CFF_Shortcode.php#L1149
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/CFF_Shortcode.php#L312
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/CFF_FB_Settings.php#L59
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/changeset/3640517/custom-facebook-feed/trunk/inc/CFF_Shortcode.php?old=3465306&old_path=custom-facebook-feed%2Ftrunk%2Finc%2FCFF_Shortcode.php