CVE-2020-27666 json
Cross-site Scripting in Strapi
published 2020-10-22 6 y ago modified 2026-06-17 4 mo ago also GHSA-qvp5-mm7v-4f36 , EUVD-2020-1436
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
Strapi before 3.2.5 has stored XSS in the wysiwyg editor's preview feature.
Patch / fix
- npm strapi-plugin-content-manager 3.2.5
- strapi strapi 3.2.5
- github.com/strapi/strapi#8440 pull request
- github.com/strapi/strapi/releases/tag/v3.2.5 release
Exploit prediction
0.71% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | strapi-plugin-content-manager | <3.2.5 |
3.2.5 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/strapi/strapi/pull/8440
web, patch, third-party-advisory
-
github.com
/strapi/strapi/releases/tag/v3.2.5
web, release-notes, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-27666
advisory
Sources
- CVE List CVE-2020-27666
- GitHub Advisory GHSA-qvp5-mm7v-4f36
- NVD CVE-2020-27666
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.