HIGHCVSS v3.1 8.1Vulnerability
CVE-2026-126377
Vvveb before 1.0.9.0 contains an authentication bypass vulnerability in generateCookie() in system/user/user.php that uses loose comparison to validate MD5 cookie hashes. Unauthenticated attackers can brute-force cookie values until the server's MD5 computation yields a 0e magic hash, then forge persistent cookies for account takeover.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-11-14T00:40:25.638091+00:00
- Epss score
- 0.00558
- Cvss severity
- HIGH
- Cvss score
- 8.1
- Retrieved at
- 2026-11-14T00:51:03+00:00
- Last source
- FIRST EPSS
- Score
- 8.1
- Cvss version
- 3.1
- Cve id
- CVE-2026-126377
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-11-13T17:31:47+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published at
- 2026-11-13T10:17:40.257
- Last modified
- 2026-11-13T10:17:40.380
- Epss percentile
- 0.47071
Related Entities (1)
HAS_WEAKNESS (1)
Related research
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