CVE-2026-73481

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-08-13. A secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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: 0.2%CVSS: 5.4Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

phpList before 3.7.0-RC5 fail to enforce CSRF token validation on the bounce rule deletion endpoint (bouncerules.php / bouncerule.php). The deletion is performed via a GET request (?page=bouncerules&del=N), and the central CSRF check (verifyCsrfGetToken) is invoked with enforce=false, so it only validates the token when a 'tk' parameter is present. A remote attacker can trick an authenticated administrator into loading a crafted URL (e.g., embedded in an image tag) to delete arbitrary bounce rules from the phplist_bounceregex table without a valid CSRF token.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
11th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

September 24, 2026

Advisory Details (5)

Auto-updated Aug 13, 2026
Patch available. Sources: github_release, github_pr, github_commit.
generic

phpList < 3.7.0-RC5 Cross-Site Request Forgery via Bounce Rules | Advisories | VulnCheck

https://www.vulncheck.com/advisories/phplist-rc5-cross-site-request-forgery-via-bounce-rules
github_commit Patch Available

commit 5159c3ed33a5 (phpList/phplist3)

Patch available: phpList/phplist3 v3.7.0-RC5 (contains commit 5159c3ed33a5)

https://github.com/phpList/phplist3/commit/5159c3ed33a5674a8169472b50d146d97f630746
github_pr Patch Available

csrf verification on del actions

Patch available: phpList/phplist3 v3.7.0-RC5 (PR #1121 merged 2026-08-09)

https://github.com/phpList/phplist3/pull/1121
github_release Patch Available

v3.7.0-RC5

Patch available: phpList/phplist3 v3.7.0-RC5

https://github.com/phpList/phplist3/releases/tag/v3.7.0-RC5
generic

CSRF enables bounce rule deletion in phpList <= 3.6.16 · Issue #1116 · phpList/phplist3 · GitHub

https://github.com/phpList/phplist3/issues/1116

Vendor Advisories for CVE-2026-73481(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 12× in last 7d / 66× 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 148 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73481?
CVE-2026-73481 is a medium vulnerability published on August 13, 2026. phpList before 3.7.0-RC5 fail to enforce CSRF token validation on the bounce rule deletion endpoint (bouncerules.php / bouncerule.php). The deletion is performed via a GET request (?page=bouncerules&del=N), and the central CSRF check (verifyCsrfGetToken) is invoked with enforce=false, so it only…
When was CVE-2026-73481 disclosed?
CVE-2026-73481 was first published on August 13, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73481 actively exploited?
CVE-2026-73481 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (11th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73481?
CVE-2026-73481 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73481?
A fix for CVE-2026-73481 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73481 are linked in the Vendor Advisories panel on this page.

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