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CVE-2021-4270

21
FAUCET Score

CVE-2021-4270 is a cross-site scripting (XSS) vulnerability affecting the Imprint CMS, specifically within the SearchForm function of the ImprintCMS/Models/ViewHelpers.cs file. An attacker can remotely manipulate the 'query' argument to inject malicious scripts. This vulnerability has a CVSS score of 6.1 (Medium), indicating it can be exploited with low attack complexity and no prior privileges, potentially leading to low impact on confidentiality and integrity. While a patch is available, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021-04-09CPE matchmatch criteria
cpe:2.3:a:imprint_cms_project:imprint_cms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.5LOW

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 27th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / peders/Imprint-CMS/commit/6140b140ccd02b5e4e7d6ba013ac1225724487f4
PatchThird Party Advisory
vuldb.com
Third Party Advisory