CVE-2026-40779: wordpress link-library Path Traversal
CVSS: 8.1v3.1HighDeferred
Published 15-06-2026Last modified 16-06-2026
Vulnerability summary
CVE-2026-40779 is a high (CVSS 8.1) Path Traversal vulnerability in wordpress link-library. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.2% of scored vulnerabilities. Fixed in 7.8.9.
CVSS score
8.1/10
010
High · v3.1 (wordfence)EPSS score
0.47%
0%100%
Low · +0.14 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
Contributor Arbitrary File Deletion in Link Library <= 7.8.8 versions.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.1Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HSources3 sources · 7.7–8.1
- CVE.orgCNA7.7HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HDiffers
- NVDNIST7.7HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.14 pp
From 0.33% on 19-09-2026
19-09-202619-10-2026
EPSS score0.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wordpress1 product
- link-library≤ 7.8.8 (fixed in 7.8.9)
Yannick lefebvre1 product
- link library≥ n/a, ≤ 7.8.8
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry