CVE-2021-39428 json
Cross Site Scripting (XSS) vulnerability in Users.php in eyoucms 1.5.4 allows remote attackers to run arbitrary code and gain escalated pri…
published 2022-12-15 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25787
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
Cross Site Scripting (XSS) vulnerability in Users.php in eyoucms 1.5.4 allows remote attackers to run arbitrary code and gain escalated privilege via the filename for edit_users_head_pic.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/eyoucms/eyoucms/issues/14 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/eyoucms/eyoucms/issues/14
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2021-39428
- NVD CVE-2021-39428
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