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CVE-2021-32855

21
FAUCET Score

CVE-2021-32855 is a cross-site scripting (XSS) vulnerability affecting Vditor, a browser-side Markdown editor, in versions prior to 3.8.7. This vulnerability requires user interaction, specifically the victim copying a malicious payload into the editor. Rated Medium (CVSS 6.1), the attack vector is network-based with low complexity, but requires user interaction (UI:R) and could lead to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.8.7CPE matchmatch criteria
cpe:2.3:a:b3log:vditor:*:*:*:*:*:*:*:*

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
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 48th 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: vditorFixed in: 3.8.7

Vendor Advisories (1)

npmGHSA-vfmp-9999-6wqjmedium

Vditor Cross-site Scripting vulnerability

Feb 21, 2023

References

github.com / Vanessa219/vditor/commit/1b2382d7f8a4ee509d9245db4450d926a0b24146
PatchThird Party Advisory
github.com / Vanessa219/vditor/issues/1085
Issue TrackingThird Party Advisory
securitylab.github.com / advisories/GHSL-2021-1006-vditor
ExploitThird Party Advisory