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CVE-2023-33977

19
FAUCET Score

CVE-2023-33977 is a cross-site scripting (XSS) vulnerability affecting Kiwi TCMS versions prior to 12.4, allowing authenticated attackers to upload malicious files that execute arbitrary JavaScript in a user's browser. Rated Medium severity (CVSS 5.4), it requires user interaction and can lead to limited confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 12.3CPE matchmatch criteria
cpe:2.3:a:kiwitcms:kiwi_tcms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 90th 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: kiwitcmsFixed in: 12.4

Vendor Advisories (1)

pipGHSA-2fqm-m4r2-fh98high

kiwitcms vulnerable to stored cross-site scripting via unrestricted file upload

Jun 6, 2023

References

github.com / kiwitcms/Kiwi/blob/master/etc/nginx.conf
Product
github.com / kiwitcms/Kiwi/blob/master/etc/nginx.conf
Product
github.com / kiwitcms/Kiwi/commit/d789f4b51025de4f8c747c037d02e1b0da80b034
Patch
github.com / kiwitcms/Kiwi/security/advisories/GHSA-2fqm-m4r2-fh98
MitigationVendor Advisory
huntr.dev / bounties/6aea9a26-e29a-467b-aa5a-f767f0c2ec96
ExploitIssue TrackingPatchThird Party Advisory