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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.

PUBLISHED Reserved 2026-04-09 | Published 2026-04-09 | Updated 2026-04-10 | Assigner VulDB




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 4.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 4.7CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.8AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Improper Neutralization of Special Elements Used in a Template Engine

Incomplete Filtering of Special Elements

Product status

4.0.202506.a
affected

4.0.202506.b
affected

5.202506.a
affected

5.202506.b
affected

5.202506.d
affected

6.202506.d
affected

Timeline

2026-04-09:Advisory disclosed
2026-04-09:VulDB entry created
2026-04-09:VulDB entry last update

Credits

anch0r (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/356541 (VDB-356541 | Sanluan PublicCMS FreeMarker Template AbstractFreemarkerView.java AbstractFreemarkerView.doRender special elements used in a template engine) vdb-entry technical-description

vuldb.com/vuln/356541/cti (VDB-356541 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/792385 (Submit #792385 | sanluan PublicCMS V4.0.202506.a, V4.0.202506.b, V5.202506.a, V5.202506.b, V5.202506.d, V6.202506.d Code Injection) third-party-advisory

github.com/sanluan/PublicCMS/issues/113 exploit issue-tracking

github.com/sanluan/PublicCMS/ product

cve.org (CVE-2026-5987)

nvd.nist.gov (CVE-2026-5987)

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