phpMyFAQ before 4.1.3 contains an insecure direct object reference vulnerability in the admin API user password endpoint that allows authenticated administrators to change any user's password without authorization verification. An attacker with low-privilege admin credentials can escalate to SuperAdmin by modifying the userId parameter in the overwrite-password API request.
CVE-2026-35671
This high-severity CVE scores 8.8 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 77% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 56(Track*)EG Risk 56/100SSVC: 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 computedSeverity88% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS
- 22.5%
- KEV
- Not listed
Published
May 20, 2026
Last Modified
June 23, 2026
Advisory Details (2)
Auto-updated May 28, 2026phpMyFAQ - Insecure Direct Object Reference in User Password API | Advisories | VulnCheck
https://www.vulncheck.com/advisories/phpmyfaq-insecure-direct-object-reference-in-user-password-apiphpMyFAQ IDOR Account Takeover · Advisory · thorsten/phpMyFAQ · GitHub
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-xvp4-phqj-cjr3Vendor Advisories for CVE-2026-35671(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(2 across 1 ecosystem)
Packagist(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| phpmyfaq/phpmyfaq | 2.10.0-alpha ... 4.1.2 (171 versions) | 4.1.3 | — |
| thorsten/phpmyfaq | 2.10.0-alpha ... 4.1.2 (171 versions) | 4.1.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 37× 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.
- 2026-07-23 03:10 UTCEG score recompute
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Frequently asked(5)
What is CVE-2026-35671?
When was CVE-2026-35671 disclosed?
Is CVE-2026-35671 actively exploited?
What is the CVSS score of CVE-2026-35671?
How do I remediate CVE-2026-35671?
Dependency Blast Radius
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