CVE-2026-52703: ninja team fastdup Path Traversal: '.../...//'
CVSS: 9.6v3.1CriticalDeferred
Published 15-06-2026Last modified 16-06-2026
Vulnerability summary
CVE-2026-52703 is a critical (CVSS 9.6) Path Traversal: '.../...//' vulnerability in ninja team fastdup. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.8% of scored vulnerabilities. Fixed in 2.7.3.
CVSS score
9.6/10
010
Critical · v3.1 (CVE.org)EPSS score
0.50%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 15-06-2026PublishedVulnerability first disclosed.
- 16-06-2026Last modifiedVulnerability information updated.
Description
Unauthenticated Path Traversal in FastDup <= 2.7.2 versions.
CVSS metrics
3 scores · 3 sources · 1 versionCritical 9.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HSources3 sources · 5.3–9.6
- NVDNIST9.6CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- wordfenceSource5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
+0.06 pp
From 0.44% on 21-09-2026
21-09-202621-10-2026
EPSS score0.50%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-35Path Traversal: '.../...//'The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory.
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Affected systems
Ninja team1 product
- fastdup≥ n/a, ≤ 2.7.2
Wordpress1 product
- fastdup≤ 2.7.2 (fixed in 2.7.3)
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry