CVE-2021-38713 json
Cross-site scripting in imgURL
published 2021-08-16 5 y ago modified 2026-06-17 4 mo ago also GHSA-f2rp-j8hv-g5gx , EUVD-2021-1690
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
imgURL 2.31 allows XSS via an X-Forwarded-For HTTP header.
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/helloxz/imgurl/issues/72 referenced PoC, tagged "exploit" by a source, unverified
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 |
|---|---|---|---|
| packagist | helloxz/imgurl | <=2.31 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/helloxz/imgurl/issues/72
web, exploit, issue-tracking, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-38713
advisory
-
github.com
/helloxz/imgurl
package
Sources
- CVE List CVE-2021-38713
- GitHub Advisory GHSA-f2rp-j8hv-g5gx
- NVD CVE-2021-38713
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