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CVE-2023-25160

18
FAUCET Score

CVE-2023-25160 is a medium-severity vulnerability affecting Nextcloud Mail, an email application for the Nextcloud platform. This flaw allows an unauthenticated attacker to access email subjects and the initial characters of emails by ID. The vulnerability has a CVSS score of 5.3, indicating a network-based attack with low complexity and a potential impact of partial confidentiality compromise. 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
< 1.11.8CPE matchmatch criteria
cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*
>= 1.12.0, < 1.12.9CPE matchmatch criteria
cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*
>= 1.13.0, < 1.14.5CPE matchmatch criteria
cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*
>= 2.0.0, < 2.2.1CPE matchmatch criteria
cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 23rd percentile among its peer group of 23,703 CVEs.

Social Chatter

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

github.com / nextcloud/mail/pull/7740
Patch
github.com / nextcloud/security-advisories/security/advisories/GHSA-m45f-r5gh-h6cx
Vendor Advisory
hackerone.com / reports/1784681
Permissions RequiredThird Party Advisory