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CVE-2023-28733

21
FAUCET Score

CVE-2023-28733 describes a stored cross-site scripting (XSS) vulnerability in the AcyMailing Joomla Plugin, specifically affecting Enterprise versions below 8.3.0. This flaw allows unauthenticated attackers to inject malicious scripts into email templates and campaigns if they have front-office access to campaign creation. The vulnerability carries a CVSS score of 6.1 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and leading to low impacts on confidentiality and integrity. The EPSS score is very low, suggesting a minimal likelihood of exploitation. Currently, there is no evidence of active exploitation, nor is there publicly available exploit code in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are also minimal, aligning with the typical lack of attention for most vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.3.0CPE matchmatch criteria
cpe:2.3:a:acymailing:acymailing:*:*:*:*:*:joomla\!:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 30th percentile among its peer group of 26,220 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

Remediation records are not available for this CVE.

References

acymailing.com / change-log
Release Notes
bugbounty.ch / advisories/CVE-2023-28733
Third Party Advisory