The Grav Login plugin (getgrav/grav-plugin-login) before 3.9.1 is vulnerable to email address enumeration. The register() method in classes/Login.php throws a distinct exception (EMAIL_NOT_AVAILABLE) when a submitted email address already belongs to an existing account, while allowing registration to proceed otherwise. Because the registration endpoint has no rate limiting, an attacker can enumerate which email addresses have accounts on the site, one guess per request.
CVE-2026-72699
MEDIUMPre-NVD 5.35.3—Trending — 4 sources updated this weekElevated
EchelonGraph scoreHIGH confidence
Score 5.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-25. a secondary CVSS source baseline 5.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(high)
- EG Risk
- 55(Attend)EG Risk 55/100SSVC: 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 computedSeverity53% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 0%
- EPSS %ILE
- 10%
- KEV
- Not listed
Published
August 25, 2026
Last Modified
August 25, 2026
Advisory Details (2)
Auto-updated Aug 25, 2026🔬 Proof of concept available. Patch available. Sources: github.
generic
Grav Login Plugin before 3.9.1 Email Enumeration via Registration | Advisories | VulnCheck
https://www.vulncheck.com/advisories/grav-login-plugin-before-email-enumeration-via-registrationgithub Patch Available🟡 PoC Available
User registration discloses whether an email address is already registered (email enumeration) · Advisory · getgrav/grav · GitHub
https://github.com/getgrav/grav/security/advisories/GHSA-crh8-xm27-j9g9Vendor Advisories for CVE-2026-72699(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.
- 2026-08-26 17:55 UTCEG score recompute
- 2026-08-26 17:55 UTCGHSA enrichment
- 2026-08-26 14:47 UTCEPSS rescore
- 2026-08-25 16:24 UTCEG score recompute
- 2026-08-25 16:24 UTCGHSA enrichment
- 2026-08-25 15:30 UTCEG score recompute
- 2026-08-25 15:30 UTCGHSA enrichment
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-25 02:19 UTCEG score recompute
- 2026-08-25 01:50 UTCEG score recompute
- 2026-08-25 01:50 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-203
- CVE-2019-10071EG 9.8EPSS p95CRITICAL
- CVE-2018-1000884EG 9.8CRITICAL
- CVE-2017-5753NVD 5.6EG 9.0EPSS p100CRITICAL
- CVE-2017-5715NVD 5.6EG 8.3EPSS p99HIGH
- CVE-2019-10233EG 8.1HIGH
- CVE-2018-9364EG 7.5HIGH
- CVE-2013-10006NVD 2.6EG 7.5HIGH
- CVE-2019-1020002EG 7.5HIGH
- CVE-2019-10114EG 7.5HIGH
- CVE-2017-13099NVD 5.9EG 7.5EPSS p98HIGH
Frequently asked(5)
What is CVE-2026-72699?
CVE-2026-72699 is a medium vulnerability published on August 25, 2026. The Grav Login plugin (getgrav/grav-plugin-login) before 3.9.1 is vulnerable to email address enumeration. The register() method in classes/Login.php throws a distinct exception (EMAILNOTAVAILABLE) when a submitted email address already belongs to an existing account, while allowing registration to…
When was CVE-2026-72699 disclosed?
CVE-2026-72699 was first published in the National Vulnerability Database on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72699 actively exploited?
CVE-2026-72699 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 89.6% of all scored CVEs.
What is the CVSS score of CVE-2026-72699?
CVE-2026-72699 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-72699?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72699, 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-2026-72699
Is Your Infrastructure Affected by CVE-2026-72699?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.