{"id":"CVE-2026-5987","state":"PUBLISHED","title":"Sanluan PublicCMS FreeMarker Template AbstractFreemarkerView.java AbstractFreemarkerView.doRender special elements used in a template engine","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.","publishedAt":"2026-04-09T22:45:14.041Z","updatedAt":"2026-04-10T13:52:31.589Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS: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","source":"VulDB"},"assigner":"VulDB","products":["Sanluan PublicCMS"],"affected":[{"vendor":"Sanluan","product":"PublicCMS","versions":[{"version":"4.0.202506.a","status":"affected"},{"version":"4.0.202506.b","status":"affected"},{"version":"5.202506.a","status":"affected"},{"version":"5.202506.b","status":"affected"},{"version":"5.202506.d","status":"affected"},{"version":"6.202506.d","status":"affected"}],"cpes":["cpe:2.3:a:publiccms:publiccms:*:*:*:*:*:*:*:*"],"modules":["FreeMarker Template Handler"]}],"references":["https://vuldb.com/vuln/356541","https://vuldb.com/vuln/356541/cti","https://vuldb.com/submit/792385","https://github.com/sanluan/PublicCMS/issues/113","https://github.com/sanluan/PublicCMS/"],"weaknesses":["CWE-1336","CWE-791"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/5xxx/CVE-2026-5987.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5987","state":"PUBLISHED","datePublished":"2026-04-09T22:45:14.041Z","dateUpdated":"2026-04-10T13:52:31.589Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-04-09T12:27:35.189Z"},"containers":{"cna":{"title":"Sanluan PublicCMS FreeMarker Template AbstractFreemarkerView.java AbstractFreemarkerView.doRender special elements used in a template engine","descriptions":[{"lang":"en","value":"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":[{"vendor":"Sanluan","product":"PublicCMS","versions":[{"version":"4.0.202506.a","status":"affected"},{"version":"4.0.202506.b","status":"affected"},{"version":"5.202506.a","status":"affected"},{"version":"5.202506.b","status":"affected"},{"version":"5.202506.d","status":"affected"},{"version":"6.202506.d","status":"affected"}],"cpes":["cpe:2.3:a:publiccms:publiccms:*:*:*:*:*:*:*:*"],"modules":["FreeMarker Template Handler"]}],"references":[{"url":"https://vuldb.com/vuln/356541","name":"VDB-356541 | Sanluan PublicCMS FreeMarker Template AbstractFreemarkerView.java AbstractFreemarkerView.doRender special elements used in a template engine","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/356541/cti","name":"VDB-356541 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/792385","name":"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","tags":["third-party-advisory"]},{"url":"https://github.com/sanluan/PublicCMS/issues/113","tags":["exploit","issue-tracking"]},{"url":"https://github.com/sanluan/PublicCMS/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.1,"vectorString":"CVSS: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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.7,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.7,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5.8,"vectorString":"AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1336","type":"CWE","lang":"en","description":"Improper Neutralization of Special Elements Used in a Template Engine"}]},{"descriptions":[{"cweId":"CWE-791","type":"CWE","lang":"en","description":"Incomplete Filtering of Special Elements"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-04-09T22:45:14.041Z"},"timeline":[{"time":"2026-04-09T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-04-09T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-04-09T14:32:40.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"anch0r (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-10T13:52:24.992895Z","id":"CVE-2026-5987","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-10T13:52:31.589Z"}}]}}}