CVE-2025-11146: apt-cacher-ng_project apt-cacher-ng Cross-site Scripting
CVSS: 5.4v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-11146DEBIAN-CVE-2025-11146
Published 29-09-2025Last modified 29-09-2025
Vulnerability summary
CVE-2025-11146 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in apt-cacher-ng_project apt-cacher-ng. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7% of scored vulnerabilities.
CVSS score
5.4/10
010
Medium · v3.1 (NVD)EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 29-09-2025PublishedVulnerability first disclosed.
- 29-09-2025Last modifiedVulnerability information updated.
Description
Reflected Cross-site scripting (XSS) in Apt-Cacher-NG v3.2.1. The vulnerability allows an attacker to execute malicious scripts (XSS) in the web management application. The vulnerability is caused by improper handling of GET inputs included in the URL in “/acng-report.html”.
CVSS metrics
6 scores · 4 sources · 2 versionsMedium 5.1Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.1MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- NVDNIST5.1MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Medium 5.4Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 19-09-2026
19-09-202619-10-2026
EPSS score0.18%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apt-cacher-ng1 product
- apt-cacher-ng3.2.1
Apt-cacher-ng_project1 product
- apt-cacher-ng3.2-1
Debian1 product
- apt-cacher-ngAll versions (No fix recorded) | < 3.7.5-1
Ubuntu1 product
- apt-cacher-ngAll versions (No fix recorded)
4 vendors · 4 products
References
4 links- www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-apt-cacher-ngREPORTThird Party Advisory