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CVE-2023-26149

19
FAUCET Score

CVE-2023-26149 is a Cross-site Scripting (XSS) vulnerability affecting versions of the 'quill-mention' package prior to 4.0.0, stemming from improper sanitization of user input within the renderList function. This medium-severity vulnerability (CVSS 6.1) could allow an attacker to inject malicious scripts if the mention list is populated with untrusted, user-supplied data, potentially leading to information disclosure or defacement. While the vulnerability requires user interaction (UI:R), there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.0CPE matchmatch criteria
cpe:2.3:a:quill-mention:quill_mention:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 47th percentile among its peer group of 26,234 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 (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: quill-mentionFixed in: 4.0.0

Vendor Advisories (1)

npmGHSA-jgw5-rp4p-qhp6medium

quill-mention Cross-site Scripting vulnerability

Sep 28, 2023

References

codepen.io / ALiangLiang/pen/mdQMJXK
Exploit
github.com / quill-mention/quill-mention/blob/0aa9847719257496b14ac5401872c4e2ffcbc3d1/src/quill.mention.js%23L391
Broken Link
github.com / quill-mention/quill-mention/commit/e85262ddced0a7f0b6fc8350d236a68bd1e28385
Patch
github.com / quill-mention/quill-mention/issues/255
ExploitIssue Tracking
github.com / quill-mention/quill-mention/pull/341
Issue TrackingPatch
security.snyk.io / vuln/SNYK-JS-QUILLMENTION-5921549
Third Party Advisory