CVE-2026-53742: quantumcloud simple_link_directory Cross-site Scripting
CVSS: 5.4v3.1MediumDeferred
Published 10-06-2026Last modified 11-06-2026
Vulnerability summary
CVE-2026-53742 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in quantumcloud simple_link_directory. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.3% of scored vulnerabilities.
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)EPSS score
0.24%
0%100%
Low · +0.09 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-06-2026PublishedVulnerability first disclosed.
- 11-06-2026Last modifiedVulnerability information updated.
Description
Simple Link Directory through 9.0.4 echoes embed shortcode attributes into HTML data attributes without escaping in the embedder template. Attackers with contributor access can craft a shortcode attribute that injects an event handler executing in a viewer's browser.
CVSS metrics
4 scores · 2 sources · 2 versionsMedium 5.1Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NSourcesAll 2 agree
- NVDNIST5.1MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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 · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesAll 2 agree
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
+0.09 pp
From 0.14% on 18-09-2026
18-09-202618-10-2026
EPSS score0.24%
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≤ 9.0.4
1 vendor · 1 product