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 3y ago modified 2026-06-17 4mo 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

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.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-04-21)

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).

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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