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TI-2026-08839 Aliases CVE-2026-10083GHSA-p975-px59-fhr4

APCu Manager < 4.5.0 - Unauthenticated Stored XSS via Cache Key Pollution

Priority LOW 35Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The APCu Manager WordPress plugin before 4.5.0 does not escape APCu object-cache keys before rendering them in an admin-area page, leading to a Stored Cross-Site Scripting vulnerability. When a persistent object cache is enabled, cache keys derived from unsanitised user input (e.g. a transient name created by another APCu Manager WordPress plugin before 4.5.0 from an unauthenticated request) are output without escaping and execute arbitrary JavaScript in the session of an administrator viewing the page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00352 29th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed APCu Manager (Unknown): 4.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownAPCu Managerbefore 4.5.04.5.0Patch availableCNA
  • APCu Manager VendorUnknown Affected before 4.5.0 Fixed in 4.5.0 Patch available CNA

Remediation

  • Fix · CNA APCu Manager (Unknown) Fixed in 4.5.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-10083
  2. 2026-10-03 Alias added: GHSA-p975-px59-fhr4

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences