CVE-2026-12688

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-07-24. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

The ProfileGrid WordPress plugin before 5.9.9.7 does not verify PayPal IPN notifications before granting paid group membership, allowing unauthenticated attackers to forge a payment notification and mark any user as a paid member of any group without any payment being made.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
60(Attend)
EG Risk 60/100SSVC: Attend

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
Severity65% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

July 24, 2026

Last Modified

July 24, 2026

Advisory Details (1)

Auto-updated Jul 25, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

ProfileGrid < 5.9.9.7 – Unauthenticated Payment Bypass and Forced Group Membership via PayPal IPN Forgery | CVE 2026-12688 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/b62a2c10-78da-4a7d-a6e1-f50ebf0763db/

Vendor Advisories for CVE-2026-12688(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 24× in last 7d / 24× 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. 2026-07-30 16:27 UTCEPSS rescore
  2. 2026-07-30 08:45 UTCEG score recompute
  3. 2026-07-30 08:45 UTCGHSA enrichment
  4. 2026-07-30 01:30 UTCEPSS rescore
  5. 2026-07-29 07:20 UTCEG score recompute
  6. 2026-07-29 07:20 UTCGHSA enrichment
  7. 2026-07-28 15:36 UTCEPSS rescore
  8. 2026-07-28 05:54 UTCEG score recompute
  9. 2026-07-28 05:54 UTCGHSA enrichment
  10. 2026-07-27 14:13 UTCEPSS rescore
  11. 2026-07-27 04:31 UTCEG score recompute
  12. 2026-07-27 04:31 UTCGHSA enrichment
  13. 2026-07-26 14:54 UTCEPSS rescore
  14. 2026-07-26 14:54 UTCEPSS rescore
  15. 2026-07-26 03:04 UTCEG score recompute
  16. 2026-07-26 03:04 UTCGHSA enrichment
  17. 2026-07-25 14:17 UTCEPSS rescore
  18. 2026-07-24 20:13 UTCEG score recompute▲ 6.50
  19. 2026-07-24 20:13 UTCGHSA enrichment
  20. 2026-07-24 20:12 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  21. 2026-07-24 14:17 UTCEPSS rescore
  22. 2026-07-24 08:11 UTCNVD update
  23. 2026-07-24 06:37 UTCEG score recompute
  24. 2026-07-24 06:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12688?
CVE-2026-12688 is a medium vulnerability published on July 24, 2026. The ProfileGrid WordPress plugin before 5.9.9.7 does not verify PayPal IPN notifications before granting paid group membership, allowing unauthenticated attackers to forge a payment notification and mark any user as a paid member of any group without any payment being made.
When was CVE-2026-12688 disclosed?
CVE-2026-12688 was first published in the National Vulnerability Database on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12688 actively exploited?
CVE-2026-12688 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 93.9% of all scored CVEs.
What is the CVSS score of CVE-2026-12688?
CVE-2026-12688 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-12688?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12688, 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-2026-12688

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