CVE-2021-41467 json
Cross-site scripting in application/controllers/dropbox.php in JustWriting
published 2021-10-01 5 y ago modified 2026-06-17 4 mo ago also GHSA-gxmc-5wj3-jx64 , EUVD-2021-2207
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Cross-site scripting (XSS) vulnerability in application/controllers/dropbox.php in JustWriting 1.0.0 and below allow remote attackers to inject arbitrary web script or HTML via the challenge parameter.
Exploit prediction
3.60% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template JustWriting - Cross-Site Scripting nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | hjue/justwriting | <=1.0.0 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/hjue/JustWriting/issues/106
web, issue-tracking, third-party-advisory
-
github.com
/hjue/JustWriting/
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-41467
advisory
-
github.com
/hjue/JustWriting
package
Sources
- CVE List CVE-2021-41467
- GitHub Advisory GHSA-gxmc-5wj3-jx64
- NVD CVE-2021-41467
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.