CVE-2018-19620
Showdoc Unauthenticated Access
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
- Record
CVE-2018-19620- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Weakness
- CWE-425
- Updated
- 2026-11-02
CVE List No score
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
- Record
CVE-2018-19620- Updated
- 2026-11-02
EUVDEUVD-2022-4753 No score
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
- Record
EUVD-2022-4753- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pfrc-5hhq-6hvr
Showdoc Unauthenticated Access
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
- Record
GHSA-pfrc-5hhq-6hvr- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-425
- Updated
- 2026-11-02
OSV
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
- Record
CVE-2018-19620- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-pfrc-5hhq-6hvr
Showdoc Unauthenticated Access
ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.
- Record
GHSA-pfrc-5hhq-6hvr- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-425
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
showdoc/showdocPackagist |
before 2.4.2 | 2.4.2 |
showdoc/showdocPackagist |
before 2.4.2, plus listed versions v1.0.0v1.0.1v1.0.2v1.0.3v1.0.4 Show 45 moreShow lessv1.0.5v1.1.0v1.1.1v1.1.3v1.1.4v1.1.5v1.2.0v1.2.1v1.2.2v1.2.3v1.2.4v1.2.5v1.2.6v1.3.0v1.3.1v1.3.3v1.3.4v1.3.5v1.3.6v1.3.7v1.3.8v1.4.0v1.4.1v1.4.2v1.4.3v1.4.4v1.4.5v1.4.6v1.4.7v1.5.0v1.5.1v1.5.2v1.5.3v1.6.0v1.6.1v1.6.2v1.7.0v1.7.1v1.7.2v1.8.0v1.8.1v1.8.2v1.8.3v1.8.4v1.8.5 |
2.4.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-19620 is a medium vulnerability (CVSS 4.3) in Showdoc, published November 28, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.26%, the 69th percentile. Fixed in showdoc/showdoc 2.4.2.
References
github.com/CCCCCrash/POCs/tree/master/Web/showdoc/IncorrectAccessControl
nvd.nist.gov/vuln/detail/CVE-2018-19620
Left out here: 25 versions. The JSON record has them.