CVE-2025-49901: quantumcloud simple_link_directory
CVSS: 9.8v3.1CriticalDeferred
Published 22-10-2025Last modified 28-04-2026
Vulnerability summary
CVE-2025-49901 is a critical (CVSS 9.8) vulnerability in quantumcloud simple_link_directory. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.3% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.73%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 22-10-2025PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Authentication Bypass Using an Alternate Path or Channel vulnerability in quantumcloud Simple Link Directory qc-simple-link-directory allows Authentication Abuse.This issue affects Simple Link Directory: from n/a through < 14.8.1.
CVSS metrics
3 scores · 3 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- wordfenceSource9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.73%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
+0.04 pp
From 0.69% on 18-09-2026
18-09-202618-10-2026
EPSS score0.73%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Quantumcloud1 product
- simple_link_directory≤ 14.8.1
Wordpress1 product
- qc-simple-link-directory< 14.8.1
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry