CVE-2026-8787

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 ImpacttotalSuccessful exploitation gives total 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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.7% of scored records. A rank, not a probability.

NVD base score

8.8 (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:U/C:H/I:H/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

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

2026-05-27 05:31Z3 MO AGO

Last updated

2026-05-27 10:34Z3 MO AGO

Reserved

2026-05-17

Assigning CNA

Wordfence

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-269Improper Privilege ManagementClass

Data version

5.2

Document digest

3bb74dc903ce28143a2c57c3b86fea7c6e2e7cd53f4411a586660e4166a04117

• www.wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/90783d75-a255-4133-ac7b-32e0a70c8c69?source=cve
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/admin-chat-box/tags/3.1.1/inc/ACB_AjaxHandler.php#L237
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/admin-chat-box/trunk/inc/ACB_AjaxHandler.php#L237
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/admin-chat-box/tags/3.1.1/inc/ACB_AjaxHandler.php#L338
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/admin-chat-box/trunk/inc/ACB_AjaxHandler.php#L338