CVE-2020-4040 json
CSRF issue on preview pages in Bolt CMS
published 6y ago modified last mo. also GHSA-2q66-6cc3-6xm8 , EUVD-2020-0450
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
Bolt CMS before version 3.7.1 lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection, unauthorized users could generate a preview. This has been fixed in Bolt 3.7.1
Patch / fix
- packagist bolt/bolt 3.7.1
- boltcms bolt 3.7.1
- github.com/bolt/bolt@b42cbfc commit
- github.com/bolt/bolt#7853 pull request
- github.com/bolt/bolt/security/advisories/GHSA-2q66-6cc3-6xm8 advisory
Is CVE-2020-4040 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.77% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- packetstormsecurity.com http://packetstormsecurity.com/files/158299/Bolt-CMS-3.7.0-XSS-CSRF-Shell-Upload.html referenced PoC, tagged "exploit" by a source, unverified
- seclists.org http://seclists.org/fulldisclosure/2020/Jul/4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | bolt/bolt | <3.7.1 |
3.7.1 |
Affected products
- bolt bolt
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
github.com
/bolt/bolt/pull/7853
web, patch, third-party-advisory
-
github.com
/bolt/bolt/commit/b42cbfcf3e3108c46a80581216ba03ef449e419f
web, patch, third-party-advisory
-
github.com
/bolt/bolt/security/advisories/GHSA-2q66-6cc3-6xm8
web, patch, third-party-advisory
-
packetstormsecurity.com
/files/158299/Bolt-CMS-3.7.0-XSS-CSRF-Shell-Upload.html
web, exploit, third-party-advisory, vdb-entry
-
seclists.org
/fulldisclosure/2020/Jul/4
mailing-list, web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-4040
advisory
-
github.com
/bolt/bolt
package
Sources
- CVE List CVE-2020-4040
- GitHub Advisory GHSA-2q66-6cc3-6xm8
- NVD CVE-2020-4040
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.