Improper Restriction of Excessive Authentication Attempts in the administration login of pH7Software pH7Builder (pH7 Social Dating CMS) through 19.2.0. The CAPTCHA escalation flag is stored in the PHP session as captcha_admin_enabled and the CAPTCHA form element is only built when that flag is present, so a remote unauthenticated attacker who obtains a new session before each login attempt is never presented with the challenge.
CVE-2026-37603
MEDIUMPre-NVD 6.56.5—Trending — 4 sources updated this weekElevated
EchelonGraph scoreHIGH confidence
Score 6.5 from GitHub Security Advisory published 2026-09-22. 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
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.
- 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 computedSeverity65% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 0%
- EPSS %ILE
- 40%
- 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 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-ph7buildergeneric
Social Daring Builder Software - 2026 Open Source Social Dating Builder Software
https://ph7builder.comgeneric
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-CMSVendor Advisories for CVE-2026-37603(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 9× in last 7d / 9× 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.
- 2026-09-24 19:14 UTCEG score recompute
- 2026-09-24 19:14 UTCGHSA enrichment
- 2026-09-23 17:20 UTCGHSA enrichment
- 2026-09-23 16:59 UTCEG score recompute▲ 6.50
- 2026-09-23 16:59 UTCGHSA enrichment
- 2026-09-23 16:59 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
- 2026-09-22 19:36 UTCNVD update
- 2026-09-22 18:48 UTCEG score recompute
- 2026-09-22 18:48 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-37603?
CVE-2026-37603 is a medium vulnerability published on September 22, 2026. Improper Restriction of Excessive Authentication Attempts in the administration login of pH7Software pH7Builder (pH7 Social Dating CMS) through 19.2.0. The CAPTCHA escalation flag is stored in the PHP session as captchaadminenabled and the CAPTCHA form element is only built when that flag is…
When was CVE-2026-37603 disclosed?
CVE-2026-37603 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-2026-37603 actively exploited?
CVE-2026-37603 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 60.0% of all scored CVEs.
What is the CVSS score of CVE-2026-37603?
CVE-2026-37603 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-37603?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37603, 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-2026-37603
Is Your Infrastructure Affected by CVE-2026-37603?
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