What’s Vulnerable › Vulnerabilities

CVE-2026-110104: novel through 3.5.0 Unsalted MD5 Password Storage

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-13 · updated 2026-10-16
• Weakness: CWE-916

Description

Xxyopen novel through 3.5.0 contains a weak password hashing vulnerability that allows attackers to recover plaintext passwords because UserServiceImpl.register() stores unsalted MD5 digests in user_info.password. Attackers who obtain the password column through a database leak or backup exposure can crack hashes with precomputed tables or GPU brute force and reuse credentials.

Affected products

• xxyopen novel: through 3.5.0

References

• https://github.com/201206030/novel/blob/v3.5.0/src/main/java/io/github/xxyopen/novel/service/impl/UserServiceImpl.java#L70-L77
• https://github.com/201206030/novel/commit/fa82ce7e426a5b29db469b8f13d2e29fc1260871
• https://github.com/201206030/novel/pull/53
• https://www.vulncheck.com/advisories/novel-through-3.5.0-unsalted-md5-password-storage
• https://github.com/201206030/novel/pull/53

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