ShowDoc through 3.9.5 contains an authorization bypass vulnerability in the api/paramDescLib/deleteEntries endpoint
Affects showdocSource GCVE Database
Not known to be exploited · CVSS 2.3 Low : upgrade to 3.9.6 when convenient.
Data as of 30 Oct 2026, 16:37 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 2.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 4.2 |
- Affects
- request. ShowDoc through 3.9.5
- Patch
- Available – fixed in 3.9.6
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade star7th/showdoc to 3.9.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubstar7th/showdocpkg:github/star7th/showdocOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, restrict access to the api/paramDescLib/deleteEntries endpoint to trusted users only and monitor for suspicious deletion activity.
Description
ShowDoc versions through 3.9.5 have an authorization bypass vulnerability in the api/paramDescLib/deleteEntries endpoint. The endpoint only verifies edit permission for the first entry ID supplied, allowing authenticated attackers to delete parameter-description entries belonging to other users by manipulating the order of entry IDs in the request.
References
- nvd.nist.gov/vuln/detail/CVE-2026-119661 (opens in a new tab)
- github.com/star7th/showdoc/issues/2612 (opens in a new tab)
- github.com/star7th/showdoc/commit/53228511e656904abf7841c3d25ff78a4b5ce9c2 (opens in a new tab)
- github.com/star7th/showdoc (opens in a new tab)
- github.com/star7th/showdoc/blob/v3.9.5/server/app/Api/Controller/ParamDescLibController.php (opens in a new tab)
- hackmd.io/@hieuPenguinnn/showdoc-paramdesclib-cross-item-idor-delete (opens in a new tab)
- vulncheck.com/advisories/showdoc-through-3.9.5-authorization-bypass-via-paramdesclib-deleteentries (opens in a new tab)