What is CVE-2026-90511?

CVE-2026-90511 is a medium-severity vulnerability in Gongshengyue Onlinebooks, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-09-13.

How severe is CVE-2026-90511?

Medium severity. CVSS v3 base score is 6.3 out of 10.

SQL Injection in Gongshengyue Onlinebooks

CVE-2026-90511

A vulnerability was detected in GongShengyue OnlineBooks up to dfc5eacc08d3b0396c266049548618f6fb9587ea. This vulnerability affects unknown code of the file src/cn/ylcto/book/servlet/BooksServlet.java of the component listSplit Interface. The manipulation of the argument column results in sql injection. The attack may be performed from remote. The exploit is now public and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Gongshengyue Onlinebooks — versions dfc5eacc08d3b0396c266049548618f6fb9587ea

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-90511?: CVE-2026-90511 is a medium-severity vulnerability in Gongshengyue Onlinebooks, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-09-13.
How severe is CVE-2026-90511?: Medium severity. CVSS v3 base score is 6.3 out of 10.