CVE-2018-19621 json
Showdoc CSRF Vulnerability
published 2018-11-28 7 y ago modified 2026-06-17 4 mo ago also GHSA-3p87-gqw8-4pf2 , EUVD-2022-2221
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
server/index.php?s=/api/teamMember/save in ShowDoc 2.4.2 has a CSRF that can add members to a team.
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/CCCCCrash/POCs/tree/master/Web/showdoc/csrf referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | showdoc/showdoc | <=2.4.2 |
no fix listed |
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
github.com
/CCCCCrash/POCs/tree/master/Web/showdoc/csrf
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-19621
advisory
-
github.com
/star7th/showdoc
package
Sources
- CVE List CVE-2018-19621
- GitHub Advisory GHSA-3p87-gqw8-4pf2
- NVD CVE-2018-19621
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.