Vulnerability in Sanluan Publiccms
CVE-2026-5987
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Sanluan Publiccms — versions 4.0.202506.a, 4.0.202506.b, 5.202506.a
Weakness classification (CWE)
References
- vuldb.com/vuln/356541 (technical-description, vdb-entry)
- vuldb.com/vuln/356541/cti (signature, permissions-required)
- vuldb.com/submit/792385 (third-party-advisory)
- github.com/sanluan/PublicCMS/issues/113 (issue-tracking, exploit)
- github.com/sanluan/PublicCMS/ (product)
Frequently asked questions
- What is CVE-2026-5987?
- CVE-2026-5987 is a medium-severity vulnerability in Sanluan Publiccms, classified under CWE-791. CVSS score: 4.7/10. Published 2026-04-09.
- How severe is CVE-2026-5987?
- Medium severity. CVSS v3 base score is 4.7 out of 10.