Vulnerability in Ph7software Ph7builder
CVE-2026-108903
pH7Builder (pH7 Social Dating CMS) before 19.3.0 contains a CAPTCHA bypass vulnerability that allows unauthenticated attackers to skip form validation by supplying a client-chosen form ID to PFBC Form::isValid(). Attackers can load a CAPTCHA-free form like login or search, then submit its ID with contact, comment, forum, invite or signup data to automate abuse.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/pH7Software/pH7-Social-Dating-CMS/commit/4758d7d2ebfd5772faa25ef728c… (patch)
- github.com/pH7Software/pH7-Social-Dating-CMS/blob/v19.2.0/_protected/app/system… (technical-description)
- github.com/pH7Software/pH7-Social-Dating-CMS (product)
- www.vulncheck.com/advisories/ph7builder-before-19.3.0-captcha-bypass-via-client… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-108903?
- CVE-2026-108903 is a medium-severity vulnerability in Ph7software Ph7builder, classified under CWE-807. CVSS score: 5.3/10. Published 2026-10-11.
- How severe is CVE-2026-108903?
- Medium severity. CVSS v3 base score is 5.3 out of 10.