What’s Vulnerable › Vulnerabilities

CVE-2026-90940: novel-plus through 5.3.3 Default Cache Management Password in the Front Portal

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-23
• Weakness: CWE-1392

Description

novel-plus through 5.3.3 contains an insecure default cache-management password in the CacheController.refreshCache endpoint that allows anonymous attackers to invalidate portal caches by supplying the hardcoded default value in the URL path. Attackers can trigger unauthorized cache invalidation by accessing the cache/refresh endpoint with the known default password, forcing unnecessary database queries to repopulate the cache.

Affected products

• novel-plus: through 5.3.3

References

• https://github.com/201206030/novel-plus
• https://github.com/201206030/novel-plus/blob/d63c3ee394657046ebd469e263532a350a60e930/novel-front/src/main/java/com/java2nb/novel/controller/CacheController.java
• https://github.com/201206030/novel-plus/blob/d63c3ee394657046ebd469e263532a350a60e930/novel-front/src/main/resources/application.yml
• https://github.com/201206030/novel-plus/releases/tag/v5.3.3
• https://github.com/LinYuanyi1/cve-request-poc/blob/master/novel-plus/poc-07-front-cache-refresh-hardcoded-password.py
• https://www.vulncheck.com/advisories/novel-plus-through-5.3.3-default-cache-management-password-in-the-front-portal

Get alerted when CVE-2026-90940 or the next vulnerability affects your stack