CVE-2026-13609

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-31. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

The Frontend Admin by DynamiApps WordPress plugin before 3.29.9 decodes HTML entities in a submitted form field value after sanitizing it, which restores HTML tags that the sanitizer had neutralized. A double-encoded payload submitted by an unauthenticated visitor is therefore stored as a live tag and later output without escaping on the Frontend Admin by DynamiApps WordPress plugin before 3.29.9's front-end display surfaces, resulting in stored cross-site scripting that executes in the browser of any user, including an administrator, who views a page displaying the submitted value.

CVSS v3
8.8
EG Score
8.8(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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 31, 2026

Last Modified

July 31, 2026

Advisory Details (1)

Auto-updated Jul 31, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Frontend Admin by DynamiApps < 3.29.9 – Unauthenticated Stored Cross-Site Scripting via Form Field | CVE 2026-13609 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/836bc6cd-42f0-4cd9-bb4c-ce5b0ff0d84b/

Vendor Advisories for CVE-2026-13609(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 26× in last 7d / 85× 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 01:11 UTCEG score recompute
  2. 2026-08-21 01:11 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 12:24 UTCGHSA enrichment
  5. 2026-08-19 23:38 UTCEG score recompute
  6. 2026-08-19 23:38 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 10:49 UTCGHSA enrichment
  9. 2026-08-18 22:02 UTCEG score recompute
  10. 2026-08-18 22:02 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 09:11 UTCGHSA enrichment
  13. 2026-08-17 20:23 UTCEG score recompute
  14. 2026-08-17 20:23 UTCGHSA enrichment
  15. 2026-08-17 07:36 UTCGHSA enrichment
  16. 2026-08-16 18:50 UTCEG score recompute
  17. 2026-08-16 18:50 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 05:51 UTCEG score recompute
  20. 2026-08-16 05:51 UTCGHSA enrichment
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-15 17:05 UTCGHSA enrichment
  23. 2026-08-15 04:18 UTCEG score recompute
  24. 2026-08-15 04:18 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
Show 60 more
  1. 2026-08-14 15:31 UTCGHSA enrichment
  2. 2026-08-14 02:45 UTCEG score recompute
  3. 2026-08-14 02:45 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 13:58 UTCGHSA enrichment
  6. 2026-08-13 01:05 UTCEG score recompute
  7. 2026-08-13 01:05 UTCGHSA enrichment
  8. 2026-08-12 13:50 UTCEPSS rescore
  9. 2026-08-12 12:19 UTCGHSA enrichment
  10. 2026-08-11 23:32 UTCEG score recompute
  11. 2026-08-11 23:32 UTCGHSA enrichment
  12. 2026-08-11 13:42 UTCEPSS rescore
  13. 2026-08-11 10:46 UTCEG score recompute
  14. 2026-08-11 10:45 UTCGHSA enrichment
  15. 2026-08-10 23:59 UTCEPSS rescore
  16. 2026-08-10 21:58 UTCGHSA enrichment
  17. 2026-08-10 09:11 UTCGHSA enrichment
  18. 2026-08-09 20:25 UTCEG score recompute
  19. 2026-08-09 20:25 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-09 07:38 UTCGHSA enrichment
  22. 2026-08-08 18:52 UTCEG score recompute
  23. 2026-08-08 18:52 UTCGHSA enrichment
  24. 2026-08-08 16:37 UTCEPSS rescore
  25. 2026-08-08 06:05 UTCGHSA enrichment
  26. 2026-08-07 17:19 UTCEG score recompute
  27. 2026-08-07 17:19 UTCGHSA enrichment
  28. 2026-08-07 04:32 UTCGHSA enrichment
  29. 2026-08-06 15:45 UTCEG score recompute
  30. 2026-08-06 15:45 UTCGHSA enrichment
  31. 2026-08-06 13:46 UTCEPSS rescore
  32. 2026-08-06 02:58 UTCEG score recompute
  33. 2026-08-06 02:58 UTCGHSA enrichment
  34. 2026-08-05 19:17 UTCEPSS rescore
  35. 2026-08-05 14:12 UTCGHSA enrichment
  36. 2026-08-05 01:13 UTCEG score recompute
  37. 2026-08-05 01:13 UTCGHSA enrichment
  38. 2026-08-04 15:09 UTCEPSS rescore
  39. 2026-08-04 12:26 UTCEG score recompute
  40. 2026-08-04 12:26 UTCGHSA enrichment
  41. 2026-08-04 10:38 UTCEPSS rescore
  42. 2026-08-03 22:19 UTCEG score recompute
  43. 2026-08-03 22:19 UTCGHSA enrichment
  44. 2026-08-03 10:35 UTCEPSS rescore
  45. 2026-08-03 09:32 UTCGHSA enrichment
  46. 2026-08-02 20:46 UTCGHSA enrichment
  47. 2026-08-02 07:59 UTCEG score recompute
  48. 2026-08-02 07:59 UTCGHSA enrichment
  49. 2026-08-02 02:26 UTCEPSS rescore
  50. 2026-08-01 19:12 UTCGHSA enrichment
  51. 2026-08-01 06:25 UTCEG score recompute
  52. 2026-08-01 06:25 UTCGHSA enrichment
  53. 2026-08-01 04:15 UTCEPSS rescore
  54. 2026-07-31 17:34 UTCGHSA enrichment
  55. 2026-07-31 17:00 UTCEG score recompute▲ 8.80
  56. 2026-07-31 17:00 UTCGHSA enrichment
  57. 2026-07-31 16:58 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  58. 2026-07-31 07:24 UTCNVD update
  59. 2026-07-31 06:30 UTCEG score recompute
  60. 2026-07-31 06:28 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13609?
CVE-2026-13609 is a high vulnerability published on July 31, 2026. The Frontend Admin by DynamiApps WordPress plugin before 3.29.9 decodes HTML entities in a submitted form field value after sanitizing it, which restores HTML tags that the sanitizer had neutralized. A double-encoded payload submitted by an unauthenticated visitor is therefore stored as a live tag…
When was CVE-2026-13609 disclosed?
CVE-2026-13609 was first published in the National Vulnerability Database on July 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13609 actively exploited?
CVE-2026-13609 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 83.8% of all scored CVEs.
What is the CVSS score of CVE-2026-13609?
CVE-2026-13609 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-13609?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13609, 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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