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CVE-2021-36654

28
FAUCET Score

CVE-2021-36654 describes an authenticated stored cross-site scripting (XSS) vulnerability in CMSuno 1.7. This flaw allows an authenticated attacker to inject malicious scripts by manipulating the 'tgo' parameter during theme updates. Rated as MEDIUM severity (CVSS 5.4), it requires user interaction and low privileges, potentially leading to limited impact on confidentiality and integrity. While not actively exploited in the wild or on the KEV catalog, public exploit code is available on ExploitDB, though there is minimal community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.7CPE matchmatch criteria
cpe:2.3:a:cmsuno_project:cmsuno:1.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50179 · Aug 5, 2021
This CVE's current EPSS score of 0.0194 is in the 98th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/163737/CMSuno-1.7-Cross-Site-Scripting.html
ExploitThird Party AdvisoryVDB Entry
github.com / boiteasite/cmsuno/issues/17
ExploitIssue TrackingThird Party Advisory