CVE-2026-10083

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
10.5%
KEV
Not listed

Published

June 29, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 29, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

APCu Manager < 4.5.0 – Unauthenticated Stored XSS via Cache Key Pollution | CVE 2026-10083 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/e591b3f3-6e21-44f7-b374-4753689532fe/

Vendor Advisories for CVE-2026-10083(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 28× in last 7d / 33× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 07:27 UTCEG score recompute
  2. 2026-07-07 07:27 UTCGHSA enrichment
  3. 2026-07-06 18:31 UTCEG score recompute
  4. 2026-07-06 18:31 UTCGHSA enrichment
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 05:38 UTCEG score recompute
  7. 2026-07-06 05:37 UTCGHSA enrichment
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 16:47 UTCEG score recompute
  10. 2026-07-05 16:47 UTCGHSA enrichment
  11. 2026-07-05 03:54 UTCEG score recompute
  12. 2026-07-05 03:54 UTCGHSA enrichment
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-05 02:30 UTCEPSS rescore
  15. 2026-07-04 14:59 UTCEG score recompute
  16. 2026-07-04 14:59 UTCGHSA enrichment
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-04 02:11 UTCEG score recompute
  19. 2026-07-04 02:10 UTCGHSA enrichment
  20. 2026-07-03 13:20 UTCEG score recompute
  21. 2026-07-03 13:20 UTCGHSA enrichment
  22. 2026-07-03 00:31 UTCEG score recompute
  23. 2026-07-03 00:31 UTCGHSA enrichment
  24. 2026-07-02 11:42 UTCEG score recompute▲ 7.50
  25. 2026-07-02 11:42 UTCGHSA enrichment
Show 8 more
  1. 2026-07-01 15:06 UTCEPSS rescore
  2. 2026-07-01 15:06 UTCEPSS rescore
  3. 2026-06-30 23:22 UTCEPSS rescore
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-29 13:32 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  6. 2026-06-29 08:04 UTCNVD update
  7. 2026-06-29 07:02 UTCEG score recompute
  8. 2026-06-29 07:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-10083?
CVE-2026-10083 is a high vulnerability published on June 29, 2026. 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…
When was CVE-2026-10083 disclosed?
CVE-2026-10083 was first published in the National Vulnerability Database on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10083 actively exploited?
CVE-2026-10083 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-10083?
CVE-2026-10083 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-10083?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10083, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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