CVE-2018-19620 json
Showdoc Unauthenticated Access
published 2018-11-28 7 y ago modified 2026-06-17 4 mo ago also GHSA-pfrc-5hhq-6hvr , EUVD-2022-4753
- cvss
- 4.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
Patch / fix
Exploit prediction
1.26% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/CCCCCrash/POCs/tree/master/Web/showdoc/IncorrectAccessControl#0x02-modify referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
| GitHub | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | showdoc/showdoc | <2.4.2 |
2.4.2 |
Classification
- Weakness
-
- CWE-425 Direct Request
References
-
github.com
/star7th/showdoc/commit/bcdb5e3519285bdf81e618b3c9b90d22bc49e13c
web, patch
-
github.com
/CCCCCrash/POCs/tree/master/Web/showdoc/IncorrectAccessControl#0x02-modify
web, exploit, third-party-advisory
-
github.com
/star7th/showdoc/issues/397
web, issue-tracking
-
nvd.nist.gov
/vuln/detail/CVE-2018-19620
advisory
-
github.com
/star7th/showdoc
package
-
github.com
/star7th/showdoc/commits/v2.4.2
web
Sources
- CVE List CVE-2018-19620
- GitHub Advisory GHSA-pfrc-5hhq-6hvr
- NVD CVE-2018-19620
Fencer Intel 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.