XSS in Xxyopen Novel-Plus

CVE-2025-60299

Novel-Plus with 5.2.0 was discovered to contain a Stored Cross-Site Scripting (XSS) vulnerability via the /book/addCommentReply endpoint. An authenticated user can inject malicious JavaScript through the replyContent parameter when replying to a book comment. The payload is stored in the database and is executed in other users’ browsers when they view the affected comment thread.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-60299: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-60299?
CVE-2025-60299 is a medium-severity vulnerability in Xxyopen Novel-Plus, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-10-08.
How severe is CVE-2025-60299?
Medium severity. CVSS v3 base score is 5.4 out of 10.