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CVE-2025-22303

21
FAUCET Score

CVE-2025-22303 describes a sensitive information disclosure vulnerability in the WP Mailster plugin, affecting versions up to and including 1.8.17.0. This flaw allows an unauthenticated attacker to retrieve embedded sensitive data due to the insertion of such information into sent data. With a CVSS score of 7.5 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, potentially leading to significant confidentiality impact. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.8.18CPE matchmatch criteria
cpe:2.3:a:wpmailster:wp_mailster:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 14th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

patchstack.com / database/Wordpress/Plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-8-17-0-sensitive-data-exposure-vulnerability
Third Party Advisory