HTML injection Vulnerability in Serv-U 15.4

published 2023-12-06 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44660

cvss: 5.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

A vulnerability has been identified within Serv-U 15.4 that allows an authenticated actor to insert content on the file share function feature of Serv-U, which could be used maliciously.

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

Affected products

SolarWinds Serv-U

Classification

Weakness

CWE-20 Improper Input Validation

References

solarwinds.com /trust-center/security-advisories/CVE-2023-40053
vendor-advisory
documentation.solarwinds.com /en/success_center/servu/content/release_notes/servu_15-4-1_release_notes.htm
release-notes

Sources

CVE List CVE-2023-40053
NVD CVE-2023-40053

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Summary