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Vulnerability · Published Apr 9, 2026 · Assigned by VulDB

CVE-2026-5987Sanluan PublicCMS FreeMarker Template AbstractFreemarkerView.java AbstractFreemarkerView.doRender special elements used in a template engine

Medium 4.7

In plain English

A medium-severity security flaw in PublicCMS from Sanluan. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.2%top 83.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A security vulnerability has been detected in Sanluan PublicCMS up to 6.202506.d. This affects the function AbstractFreemarkerView.doRender of the file publiccms-parent/publiccms-core/src/main/java/com/publiccms/common/base/AbstractFreemarkerView.java of the component FreeMarker Template Handler. Such manipulation leads to improper neutralization of special elements used in a template engine. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products (as reported)

VendorProductVersions
Sanluan PublicCMS 4.0.202506.a4.0.202506.b5.202506.a5.202506.b5.202506.d6.202506.d

Weakness: CWE-1336, CWE-791 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References