CVE-2026-73243kkFileView: Unauthenticated SSRF via /addTask with fullfilename type-confusion bypass
Updated under an hour ago ()
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It affects kekingcn kkFileView. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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kkFileView is a universal file online preview project based on Spring Boot. Prior to 5.0.1, the unauthenticated GET /addTask endpoint in kkFileView is omitted from TrustHostFilter and TrustDirFilter in server/src/main/java/cn/keking/config/WebConfig.java, allowing FileConvertQueueTask to fetch an attacker-selected URL after FileHandlerService#getFileAttribute uses the fullfilename parameter to force an OFFICE, COMPRESS, or CAD type. This issue is fixed in version 5.0.1.
- CVSS
- 5.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Aug 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
kekingcn kkFileView kekingcn:kkfileview (from the name) | before 5.0.1 | CNA record |
References
- https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2mx-refsource-confirm
- https://github.com/kekingcn/kkFileView/issues/765x-refsource-misc
- https://github.com/kekingcn/kkFileView/pull/767x-refsource-misc
- https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709x-refsource-misc
- https://github.com/kekingcn/kkFileView/releases/tag/v5.0.1x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.