CVE-2026-108903CWE-807

CVE-2026-108903

Medium · published October 11, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
18.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00270 · 18.2th percentile
Weakness
CWE-807 · Reliance on Untrusted Inputs in a Security Decision
Published
2026-10-11T19:16Z
References (4)
https://github.com/pH7Software/pH7-Social-Dating-CMS · [email protected]https://github.com/pH7Software/pH7-Social-Dating-CMS/blob/v19.2.0/_protected/app/system/modules/contact/forms/ContactForm.php#L33-L38 · [email protected]https://github.com/pH7Software/pH7-Social-Dating-CMS/commit/4758d7d2ebfd5772faa25ef728c14f8f452e82f4 · [email protected]https://www.vulncheck.com/advisories/ph7builder-before-19.3.0-captcha-bypass-via-client-chosen-form-id · [email protected]
EPSS history
Timeline
  • 13 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 11 OCT 14:58Z
    pH7Builder before 19.3.0 CAPTCHA Bypass via Client-Chosen Form ID
    cvelistv5
  • 11 OCT 14:58Z
    pH7Builder before 19.3.0 CAPTCHA Bypass via Client-Chosen Form ID
    cvelistv5