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CVE-2022-21650

20
FAUCET Score

CVE-2022-21650 is a Stored Cross-Site Scripting (XSS) vulnerability affecting Convos, an open-source multi-user chat application. An authenticated attacker can bypass file upload filters by renaming an SVG file with an .html extension, leading to malicious script execution when a user views the uploaded file. With a CVSS score of 5.4 (Medium), this vulnerability requires user interaction and low privileges to exploit, potentially leading to limited impact on confidentiality and integrity. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.48, < 6.52CPE matchmatch criteria
cpe:2.3:a:convos:convos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 89th percentile among its peer group of 15,225 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

blog.pocas.kr / 2021/12/30/2021-12-30-s-xss-convos-chat
Broken Link
github.com / convos-chat/convos/commit/5c0a1ec9a2c147bc3b63fd5a48da5f32e18fe5df
PatchThird Party Advisory
github.com / convos-chat/convos/security/advisories/GHSA-mm2v-4v7g-m695
PatchThird Party Advisory
huntr.dev / bounties/ae424798-de01-4972-b73b-2db674f82368
ExploitIssue TrackingPatchThird Party Advisory