CVE-2019-25103 json
simple-markdown simple-markdown.js redos
published 2023-02-12 3 y ago modified 2026-06-17 4 mo ago also GHSA-gpvj-gp8c-c7p2 , EUVD-2023-0709
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
A vulnerability has been found in simple-markdown 0.5.1 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file simple-markdown.js. The manipulation leads to inefficient regular expression complexity. The attack can be launched remotely. Upgrading to version 0.5.2 is able to address this issue. The patch is named 89797fef9abb4cab2fb76a335968266a92588816. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-220639.
Patch / fix
- npm simple-markdown 0.5.2
Exploit prediction
0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| CNA | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| CNA | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | simple-markdown | <0.5.2 |
0.5.2 |
Affected products
- n/a simple-markdown
Classification
- Weakness
-
- CWE-1333 Inefficient Regular Expression Complexity
References
-
github.com
/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816
patch, web
-
github.com
/ariabuckles/simple-markdown/releases/tag/0.5.2
patch, web, release-notes
-
vuldb.com
/?id.220639
vdb-entry, technical-description, web, third-party-advisory
-
vuldb.com
/?ctiid.220639
signature, permissions-required, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-25103
advisory
-
github.com
/Khan/simple-markdown/issues/71
web
-
github.com
/ariabuckles/simple-markdown
package
-
snyk.io
/vuln/SNYK-JS-SIMPLEMARKDOWN-460540
web
Sources
- CVE List CVE-2019-25103
- GitHub Advisory GHSA-gpvj-gp8c-c7p2
- NVD CVE-2019-25103
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.