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CVE-2024-4023

22
FAUCET Score

CVE-2024-4023 is a stored cross-site scripting (XSS) vulnerability in flatpressblog/flatpress version 1.3. It allows an attacker to execute arbitrary JavaScript by uploading a specially crafted .xsig file, which the server incorrectly processes as HTML when directly accessed. This vulnerability has a CVSS score of 8.1 (HIGH), indicating a network-based attack with low complexity, requiring user interaction, and potentially leading to high impact on confidentiality and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.3CPE matchmatch criteria
cpe:2.3:a:flatpress:flatpress:1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 53rd percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / flatpressblog/flatpress/commit/3c9cc69364a45fd3f92d4bd606344b5dd1205d6a
Patch
huntr.com / bounties/ed803c13-0858-4c22-93ba-bf2384ab1e9d
ExploitThird Party Advisory