{"id":"CVE-2026-4494","aliases":["EUVD-2026-13756","GHSA-9wm2-388x-gpfx"],"status":"published","title":"atjiu pybbs TopicApiController.java create cross site scripting","description":"A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00307,"percentile":0.23704,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79","CWE-94"],"published":"2026-03-20T17:32:49Z","modified":"2026-06-17T10:56:41Z","products":[{"vendor":"atjiu","product":"pybbs"}],"references":[{"url":"https://vuldb.com/?id.352020","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.352020","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.773779","tags":["third-party-advisory"]},{"url":"https://fx4tqqfvdw4.feishu.cn/docx/EKVgdqWIzo70C0xB5jxcb4IZnre?from=from_copylink","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4494"},{"url":"https://github.com/advisories/GHSA-9wm2-388x-gpfx"}],"sources":{"cve":[{"id":"CVE-2026-4494","title":"atjiu pybbs TopicApiController.java create cross site scripting","description":"A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.","status":"published","published":"2026-03-20T17:32:49.226Z","modified":"2026-03-24T19:31:55.96Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"},{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","level":"low","assessor":"cna"},{"version":"3.0","score":3.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","level":"low","assessor":"cna"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-79","CWE-94"],"updated_at":"2026-11-02T14:19:58.944663Z"}],"euvd":[{"id":"EUVD-2026-13756","description":"A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.","status":"published","published":"2026-03-20T17:32:49Z","modified":"2026-03-24T19:31:55Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T19:25:29.547775Z"}],"ghsa":[{"id":"GHSA-9wm2-388x-gpfx","title":"A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file...","description":"A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.","status":"published","published":"2026-03-20T18:31:20Z","modified":"2026-03-20T18:31:28Z","cvss":[{"version":"4.0","score":2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:06:44.698439Z"}],"nvd":[{"id":"CVE-2026-4494","description":"A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.","status":"published","published":"2026-03-20T18:16:17.8Z","modified":"2026-06-17T10:56:41.98Z","cvss":[{"version":"4.0","score":2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79","CWE-94"],"updated_at":"2026-11-02T14:12:10.126802Z"}]}}