CVE-2026-13169

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-19. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

The Eventin WordPress plugin before 4.1.21 does not properly verify ownership of events before allowing them to be modified, deleted, or reassigned to a different author, allowing users with contributor-level access and above to alter, delete, or take over events created by other users including administrators.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Eventin < 4.1.21 – Contributor+ Arbitrary Event Modification, Deletion and Ownership Takeover via IDOR | CVE 2026-13169 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/cf2b1152-7190-467b-a860-1f7bd806575d/

Vendor Advisories for CVE-2026-13169(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 27× in last 7d / 110× 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.

Showing the most recent 100 of 127 total refreshes for this CVE.

  1. 2026-09-21 00:27 UTCEG score recompute
  2. 2026-09-21 00:27 UTCGHSA enrichment
  3. 2026-09-20 20:15 UTCEPSS rescore
  4. 2026-09-20 12:38 UTCGHSA enrichment
  5. 2026-09-19 23:38 UTCEG score recompute
  6. 2026-09-19 23:38 UTCGHSA enrichment
  7. 2026-09-19 11:48 UTCGHSA enrichment
  8. 2026-09-18 23:48 UTCEG score recompute
  9. 2026-09-18 23:48 UTCGHSA enrichment
  10. 2026-09-18 19:27 UTCEPSS rescore
  11. 2026-09-18 12:00 UTCEG score recompute
  12. 2026-09-18 12:00 UTCGHSA enrichment
  13. 2026-09-18 00:11 UTCEG score recompute
  14. 2026-09-18 00:11 UTCGHSA enrichment
  15. 2026-09-17 12:18 UTCGHSA enrichment
  16. 2026-09-17 00:29 UTCEG score recompute
  17. 2026-09-17 00:29 UTCGHSA enrichment
  18. 2026-09-16 12:40 UTCEG score recompute
  19. 2026-09-16 12:40 UTCGHSA enrichment
  20. 2026-09-16 05:14 UTCEPSS rescore
  21. 2026-09-16 00:51 UTCGHSA enrichment
  22. 2026-09-15 12:46 UTCEG score recompute
  23. 2026-09-15 12:46 UTCGHSA enrichment
  24. 2026-09-15 00:50 UTCGHSA enrichment
  25. 2026-09-14 13:01 UTCGHSA enrichment
Show 75 more
  1. 2026-09-14 01:11 UTCEG score recompute
  2. 2026-09-14 01:11 UTCGHSA enrichment
  3. 2026-09-13 16:46 UTCEPSS rescore
  4. 2026-09-13 13:22 UTCGHSA enrichment
  5. 2026-09-13 01:33 UTCEG score recompute
  6. 2026-09-13 01:33 UTCGHSA enrichment
  7. 2026-09-12 15:00 UTCEPSS rescore
  8. 2026-09-12 13:44 UTCGHSA enrichment
  9. 2026-09-12 01:55 UTCEG score recompute
  10. 2026-09-12 01:55 UTCGHSA enrichment
  11. 2026-09-11 14:52 UTCEPSS rescore
  12. 2026-09-11 14:06 UTCEG score recompute
  13. 2026-09-11 14:06 UTCGHSA enrichment
  14. 2026-09-11 09:36 UTCEPSS rescore
  15. 2026-09-11 02:17 UTCGHSA enrichment
  16. 2026-09-10 14:28 UTCEG score recompute
  17. 2026-09-10 14:28 UTCGHSA enrichment
  18. 2026-09-10 09:34 UTCEPSS rescore
  19. 2026-09-10 02:39 UTCGHSA enrichment
  20. 2026-09-09 14:49 UTCGHSA enrichment
  21. 2026-09-09 02:44 UTCEG score recompute
  22. 2026-09-09 02:44 UTCGHSA enrichment
  23. 2026-09-08 22:00 UTCEPSS rescore
  24. 2026-09-08 03:35 UTCEG score recompute
  25. 2026-09-08 03:35 UTCGHSA enrichment
  26. 2026-09-07 16:01 UTCEPSS rescore
  27. 2026-09-07 15:46 UTCGHSA enrichment
  28. 2026-09-07 00:42 UTCEG score recompute
  29. 2026-09-07 00:42 UTCGHSA enrichment
  30. 2026-09-06 13:47 UTCEPSS rescore
  31. 2026-09-06 12:52 UTCGHSA enrichment
  32. 2026-09-06 01:03 UTCEG score recompute
  33. 2026-09-06 01:03 UTCGHSA enrichment
  34. 2026-09-05 13:02 UTCGHSA enrichment
  35. 2026-09-05 01:12 UTCEG score recompute
  36. 2026-09-05 01:12 UTCGHSA enrichment
  37. 2026-09-04 13:22 UTCEG score recompute
  38. 2026-09-04 13:22 UTCGHSA enrichment
  39. 2026-09-04 05:06 UTCEPSS rescore
  40. 2026-09-04 01:33 UTCGHSA enrichment
  41. 2026-09-03 13:40 UTCGHSA enrichment
  42. 2026-09-03 01:46 UTCEG score recompute
  43. 2026-09-03 01:45 UTCGHSA enrichment
  44. 2026-09-02 14:11 UTCEPSS rescore
  45. 2026-09-02 13:57 UTCGHSA enrichment
  46. 2026-09-02 01:49 UTCGHSA enrichment
  47. 2026-09-01 14:00 UTCEG score recompute
  48. 2026-09-01 13:59 UTCGHSA enrichment
  49. 2026-09-01 13:53 UTCEPSS rescore
  50. 2026-09-01 04:39 UTCEPSS rescore
  51. 2026-09-01 02:01 UTCGHSA enrichment
  52. 2026-08-31 14:11 UTCGHSA enrichment
  53. 2026-08-31 01:58 UTCEG score recompute
  54. 2026-08-31 01:58 UTCGHSA enrichment
  55. 2026-08-30 19:17 UTCEPSS rescore
  56. 2026-08-30 14:09 UTCGHSA enrichment
  57. 2026-08-30 02:19 UTCEG score recompute
  58. 2026-08-30 02:19 UTCGHSA enrichment
  59. 2026-08-30 01:21 UTCEPSS rescore
  60. 2026-08-29 14:31 UTCGHSA enrichment
  61. 2026-08-29 02:36 UTCEG score recompute
  62. 2026-08-29 02:36 UTCGHSA enrichment
  63. 2026-08-28 21:40 UTCEPSS rescore
  64. 2026-08-28 04:25 UTCGHSA enrichment
  65. 2026-08-27 16:34 UTCEG score recompute
  66. 2026-08-27 16:34 UTCGHSA enrichment
  67. 2026-08-27 14:24 UTCEPSS rescore
  68. 2026-08-27 04:43 UTCGHSA enrichment
  69. 2026-08-26 16:54 UTCEG score recompute
  70. 2026-08-26 16:54 UTCGHSA enrichment
  71. 2026-08-26 11:02 UTCGHSA enrichment
  72. 2026-08-25 23:11 UTCEG score recompute
  73. 2026-08-25 23:11 UTCGHSA enrichment
  74. 2026-08-25 13:48 UTCEPSS rescore
  75. 2026-08-25 11:17 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13169?
CVE-2026-13169 is a high vulnerability published on August 19, 2026. The Eventin WordPress plugin before 4.1.21 does not properly verify ownership of events before allowing them to be modified, deleted, or reassigned to a different author, allowing users with contributor-level access and above to alter, delete, or take over events created by other users including…
When was CVE-2026-13169 disclosed?
CVE-2026-13169 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13169 actively exploited?
CVE-2026-13169 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 83.6% of all scored CVEs.
What is the CVSS score of CVE-2026-13169?
CVE-2026-13169 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-13169?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13169, 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

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