What’s Vulnerable › Vulnerabilities

CVE-2015-2951

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-06-05 · updated 2026-06-17
• Weakness: CWE-20

Description

JWT.php in F21 JWT before 2.0 allows remote attackers to bypass signature verification via crafted tokens.

Affected products

• F21 Jwt: through 1.0

References

• http://jvn.jp/en/jp/JVN06120222/index.html
• http://jvndb.jvn.jp/jvndb/JVNDB-2015-000073
• http://www.securityfocus.com/bid/75021
• https://github.com/F21/jwt/commit/a327cf9052df8f9f97728ca0b5fa78a8231b79b6
• http://jvn.jp/en/jp/JVN06120222/index.html
• http://jvndb.jvn.jp/jvndb/JVNDB-2015-000073
• http://www.securityfocus.com/bid/75021
• https://github.com/F21/jwt/commit/a327cf9052df8f9f97728ca0b5fa78a8231b79b6

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