CVE-2021-28088 json
Cross-site scripting (XSS)
published 2021-03-11 5 y ago modified 2026-06-17 4 mo ago also GHSA-79hv-pfx6-hhpj , EUVD-2021-0623
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
Cross-site scripting (XSS) in modules/content/admin/content.php in ImpressCMS profile 1.4.2 allows remote attackers to inject arbitrary web script or HTML parameters through the "Display Name" field.
Exploit prediction
0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- anotepad.com https://anotepad.com/note/read/s3kkk6h7 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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | impresscms/impresscms | <=1.4.2 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
anotepad.com
/note/read/s3kkk6h7
web, exploit, third-party-advisory
-
hackerone.com
/reports/1119296
web, permissions-required, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-28088
advisory
Sources
- CVE List CVE-2021-28088
- GitHub Advisory GHSA-79hv-pfx6-hhpj
- NVD CVE-2021-28088
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