CVE-2026-15249

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-08-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: Elevated riskExposed: 0

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

The Patterns Kit WordPress plugin through 1.0.3 does not escape a link attribute before its client-side script inserts it into the page, allowing users with a role as low as Contributor to store a payload that executes in the browser of a user who views the content and clicks the affected element.

CVSS v3
5.4
EG Score
5.4(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity54% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Patterns Kit <= 1.0.3 – Contributor+ Stored XSS via YouTube Popup Link | CVE 2026-15249 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/ad42fc34-5d7e-4fb9-98fc-b9e80b552535/

Vendor Advisories for CVE-2026-15249(1)

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 23× in last 7d / 36× 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. 2026-08-21 00:53 UTCEG score recompute
  2. 2026-08-21 00:53 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 02:43 UTCEG score recompute
  5. 2026-08-20 02:43 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 04:32 UTCEG score recompute
  8. 2026-08-19 04:32 UTCGHSA enrichment
  9. 2026-08-18 13:48 UTCEPSS rescore
  10. 2026-08-18 06:21 UTCEG score recompute
  11. 2026-08-18 06:21 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 08:10 UTCEG score recompute
  14. 2026-08-17 08:10 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 10:00 UTCEG score recompute
  17. 2026-08-16 10:00 UTCGHSA enrichment
  18. 2026-08-16 02:14 UTCEPSS rescore
  19. 2026-08-15 11:50 UTCEG score recompute
  20. 2026-08-15 11:50 UTCGHSA enrichment
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-14 13:40 UTCEG score recompute
  23. 2026-08-14 13:40 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 15:29 UTCEG score recompute
Show 11 more
  1. 2026-08-13 15:29 UTCGHSA enrichment
  2. 2026-08-12 17:17 UTCEG score recompute
  3. 2026-08-12 17:17 UTCGHSA enrichment
  4. 2026-08-12 16:21 UTCEG score recompute▲ 5.40
  5. 2026-08-12 16:21 UTCGHSA enrichment
  6. 2026-08-12 16:20 UTCMITRE cvelistV5CVSS v3 → 5.4 · severity → MEDIUM
  7. 2026-08-12 13:50 UTCEPSS rescore
  8. 2026-08-12 06:31 UTCGHSA enrichment
  9. 2026-08-12 06:30 UTCNVD update
  10. 2026-08-12 06:07 UTCEG score recompute
  11. 2026-08-12 06:03 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15249?
CVE-2026-15249 is a medium vulnerability published on August 12, 2026. The Patterns Kit WordPress plugin through 1.0.3 does not escape a link attribute before its client-side script inserts it into the page, allowing users with a role as low as Contributor to store a payload that executes in the browser of a user who views the content and clicks the affected element.
When was CVE-2026-15249 disclosed?
CVE-2026-15249 was first published in the National Vulnerability Database on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15249 actively exploited?
CVE-2026-15249 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.1% of all scored CVEs.
What is the CVSS score of CVE-2026-15249?
CVE-2026-15249 has a CVSS v3.1 base score of 5.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15249?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15249, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-15249

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