CVE-2026-5987
MEDIUMDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 15% of all known CVEs.
References
Related Vulnerabilities
Other CWE-791 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-21668 | High | 8.0 | 3.9% | - | Fix |
| CVE-2022-2132 | High | 8.6 | 1.8% | - | Fix |
| CVE-2026-47323 | Critical | 9.8 | 1.5% | - | Fix |
| CVE-2026-29186 | High | 7.7 | 0.8% | - | Fix |
| CVE-2024-47590 | High | 8.8 | 0.8% | - | - |
| CVE-2026-2969 | Medium | 4.7 | 0.7% | - | - |
Common questions
How do I fix CVE-2026-5987?
No published fix for CVE-2026-5987 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-5987 being actively exploited?
Not that we know of. CVE-2026-5987 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.24% is the estimated probability that it will be exploited in the next 30 days. That is higher than 15% of all scored CVEs.
How severe is CVE-2026-5987?
CVE-2026-5987 has a CVSS v3 base score of 4.7, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.