CVE-2026-16635

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-01. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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 Pronamic Pay plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 10.1.0 This is due to the maybe_update_user_role() function passing an attacker-controlled Gravity Forms field value ($lead[$feed->user_role_field_id]) directly into WP_User::set_role() without any allowlist validation, capability comparison, or permission check to constrain which roles can be assigned. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their own WordPress account to Administrator by tampering with the role field value in a form submission. Exploitation requires that an administrator has already configured a Pronamic Pay payment feed in Gravity Forms with the Update User Role option enabled and mapped to a form field; once that configuration is in place, no further preconditions exist to prevent an authenticated attacker from exploiting this vulnerability.

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
24%
KEV
Not listed

Published

August 1, 2026

Last Modified

August 12, 2026

References (7)

Vendor Advisories for CVE-2026-16635(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 29× 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 03:56 UTCEG score recompute
  2. 2026-08-21 03:56 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 16:58 UTCGHSA enrichment
  5. 2026-08-20 06:01 UTCGHSA enrichment
  6. 2026-08-19 19:03 UTCEG score recompute
  7. 2026-08-19 19:03 UTCGHSA enrichment
  8. 2026-08-19 17:03 UTCEPSS rescore
  9. 2026-08-19 06:48 UTCGHSA enrichment
  10. 2026-08-18 19:44 UTCEG score recompute
  11. 2026-08-18 19:43 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 08:45 UTCGHSA enrichment
  14. 2026-08-17 21:48 UTCEG score recompute
  15. 2026-08-17 21:48 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 10:42 UTCGHSA enrichment
  18. 2026-08-16 23:45 UTCEG score recompute
  19. 2026-08-16 23:45 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 12:47 UTCEG score recompute
  22. 2026-08-16 12:47 UTCGHSA enrichment
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-16 01:50 UTCGHSA enrichment
  25. 2026-08-15 14:53 UTCGHSA enrichment
Show 60 more
  1. 2026-08-15 03:56 UTCEG score recompute
  2. 2026-08-15 03:56 UTCGHSA enrichment
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 16:59 UTCGHSA enrichment
  5. 2026-08-14 06:02 UTCEG score recompute
  6. 2026-08-14 06:02 UTCGHSA enrichment
  7. 2026-08-13 22:00 UTCEPSS rescore
  8. 2026-08-13 19:04 UTCGHSA enrichment
  9. 2026-08-13 08:07 UTCGHSA enrichment
  10. 2026-08-12 21:09 UTCEG score recompute
  11. 2026-08-12 21:09 UTCGHSA enrichment
  12. 2026-08-12 13:50 UTCEPSS rescore
  13. 2026-08-12 10:30 UTCGHSA enrichment
  14. 2026-08-11 23:32 UTCEG score recompute
  15. 2026-08-11 23:32 UTCGHSA enrichment
  16. 2026-08-11 13:42 UTCEPSS rescore
  17. 2026-08-11 12:35 UTCGHSA enrichment
  18. 2026-08-11 01:38 UTCEG score recompute
  19. 2026-08-11 01:38 UTCGHSA enrichment
  20. 2026-08-11 00:00 UTCEPSS rescore
  21. 2026-08-10 14:41 UTCGHSA enrichment
  22. 2026-08-10 03:43 UTCGHSA enrichment
  23. 2026-08-09 16:46 UTCEG score recompute
  24. 2026-08-09 16:46 UTCGHSA enrichment
  25. 2026-08-09 13:46 UTCEPSS rescore
  26. 2026-08-09 05:49 UTCGHSA enrichment
  27. 2026-08-08 18:52 UTCGHSA enrichment
  28. 2026-08-08 07:54 UTCGHSA enrichment
  29. 2026-08-07 20:57 UTCEG score recompute
  30. 2026-08-07 20:57 UTCGHSA enrichment
  31. 2026-08-07 10:00 UTCGHSA enrichment
  32. 2026-08-06 23:02 UTCEG score recompute
  33. 2026-08-06 23:02 UTCGHSA enrichment
  34. 2026-08-06 13:46 UTCEPSS rescore
  35. 2026-08-06 12:05 UTCGHSA enrichment
  36. 2026-08-06 01:08 UTCEG score recompute
  37. 2026-08-06 01:08 UTCGHSA enrichment
  38. 2026-08-05 19:17 UTCEPSS rescore
  39. 2026-08-05 14:11 UTCGHSA enrichment
  40. 2026-08-05 02:33 UTCGHSA enrichment
  41. 2026-08-04 15:36 UTCEG score recompute
  42. 2026-08-04 15:36 UTCGHSA enrichment
  43. 2026-08-04 15:10 UTCEPSS rescore
  44. 2026-08-04 10:38 UTCEPSS rescore
  45. 2026-08-04 04:39 UTCGHSA enrichment
  46. 2026-08-03 17:41 UTCEG score recompute
  47. 2026-08-03 17:41 UTCGHSA enrichment
  48. 2026-08-03 16:19 UTCEG score recompute
  49. 2026-08-03 16:19 UTCGHSA enrichment
  50. 2026-08-03 10:35 UTCEPSS rescore
  51. 2026-08-03 05:21 UTCGHSA enrichment
  52. 2026-08-02 18:20 UTCGHSA enrichment
  53. 2026-08-02 07:23 UTCEG score recompute
  54. 2026-08-02 07:23 UTCGHSA enrichment
  55. 2026-08-02 02:26 UTCEPSS rescore
  56. 2026-08-01 20:25 UTCEG score recompute
  57. 2026-08-01 20:25 UTCGHSA enrichment
  58. 2026-08-01 09:28 UTCEG score recompute
  59. 2026-08-01 09:13 UTCEG score recompute
  60. 2026-08-01 09:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-16635?
CVE-2026-16635 is a high vulnerability published on August 1, 2026. The Pronamic Pay plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 10.1.0 This is due to the maybeupdateuserrole() function passing an attacker-controlled Gravity Forms field value ($lead[$feed->userrolefieldid]) directly into WPUser::setrole() without…
When was CVE-2026-16635 disclosed?
CVE-2026-16635 was first published in the National Vulnerability Database on August 1, 2026, with the most recent update 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-2026-16635 actively exploited?
CVE-2026-16635 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 76.3% of all scored CVEs.
What is the CVSS score of CVE-2026-16635?
CVE-2026-16635 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-16635?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16635, 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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