CVE-2026-37604

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-22. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

pH7Software pH7Builder (pH7 Social Dating CMS) through 18.2.0 resolves the client IP address in _protected/framework/Ip/Ip.class.php from the HTTP_CLIENT_IP and HTTP_X_FORWARDED_FOR headers without verifying the request comes from a trusted proxy. Because the admin login attempt counter and lockout are keyed on this value, a remote unauthenticated attacker bypasses IP-based throttling by sending a different X-Forwarded-For value per request

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
27%
KEV
Not listed

Published

September 22, 2026

Last Modified

September 23, 2026

Advisory Details (3)

Auto-updated Sep 23, 2026
🔬 Proof of concept available. Patch available.
generic

Social Daring Builder Software - 2026 Open Source Social Dating Builder Software

https://ph7builder.com
generic

GitHub - pH7Software/pH7-Social-Dating-CMS: Self-hosted, open-source PHP 8.2+ software for building white-label dating sites, matchmaking communities, and social networks. Own your code, hosting, database, and member data. · GitHub

https://github.com/pH7Software/pH7-Social-Dating-CMS
generic Patch Available🟡 PoC Available

CVE-2026-37603 & CVE-2026-37604: Admin Brute-Force Protection Bypass Chain in pH7Builder | CyberMap Group

https://cybermapgroup.com/en/blog/admin-brute-force-protection-bypass-chain-in-ph7builder

Vendor Advisories for CVE-2026-37604(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 11× in last 7d / 11× 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. 2026-09-24 03:30 UTCGHSA enrichment
  2. 2026-09-23 23:46 UTCGHSA enrichment
  3. 2026-09-23 20:03 UTCEG score recompute
  4. 2026-09-23 20:03 UTCGHSA enrichment
  5. 2026-09-23 16:19 UTCGHSA enrichment
  6. 2026-09-23 15:29 UTCEG score recompute▲ 9.80
  7. 2026-09-23 15:29 UTCGHSA enrichment
  8. 2026-09-23 15:29 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  9. 2026-09-22 19:36 UTCNVD update
  10. 2026-09-22 18:48 UTCEG score recompute
  11. 2026-09-22 18:48 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-37604?
CVE-2026-37604 is a critical vulnerability published on September 22, 2026. pH7Software pH7Builder (pH7 Social Dating CMS) through 18.2.0 resolves the client IP address in protected/framework/Ip/Ip.class.php from the HTTPCLIENTIP and HTTPXFORWARDEDFOR headers without verifying the request comes from a trusted proxy. Because the admin login attempt counter and lockout are…
When was CVE-2026-37604 disclosed?
CVE-2026-37604 was first published in the National Vulnerability Database on September 22, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-37604 actively exploited?
CVE-2026-37604 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 72.9% of all scored CVEs.
What is the CVSS score of CVE-2026-37604?
CVE-2026-37604 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-37604?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37604, 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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