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CVE-2026-121501

2.1 lowEPSS 0.2%

Low (2.1). EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

On this page
A vulnerability was determined in mathurvishal CloudClassroom-PHP-Project. The affected element is the function session_regenerate_id of the file loginlinkadmin.php. Executing a manipulation of the argument PHPSESSID can lead to session fixiation. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.

Severity

CVSS 4.0

2.1 low
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

6.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 13th percentile. Scored 2026-11-04. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-384 Session Fixation
OWASP Top 10
A07:2025 Authentication Failures
Published
Modified
Record from
the NVD, synced

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Versions

From the CNA's record in the CVE List.

ProductAffected
mathurvishal CloudClassroom-PHP-Project5dadec098bfbbf3300d60c3494db3fb95b66e7be
mathurvishal CloudClassroom-PHP-Projectc46ce5736007d9d6e51a8feeb9250729fe85f139
mathurvishal CloudClassroom-PHP-Projectdae0c5961a35a4faf28cde9e02117538f09f81c1

Attack patterns (CAPEC)

  • CAPEC-21 Exploitation of Trusted Identifiers Likelihood: High · Severity: High
  • CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies Likelihood: High · Severity: High
  • CAPEC-39 Manipulating Opaque Client-based Data Tokens Likelihood: High · Severity: Medium
  • CAPEC-59 Session Credential Falsification through Prediction Likelihood: High · Severity: High
  • CAPEC-60 Reusing Session IDs (aka Session Replay) Likelihood: High · Severity: High
  • CAPEC-61 Session Fixation Likelihood: Medium · Severity: High
  • CAPEC-196 Session Credential Falsification through Forging Likelihood: Medium · Severity: Medium

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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