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CVE-2022-31131

18
FAUCET Score

CVE-2022-31131 affects Nextcloud Mail versions prior to 1.12.2, where a missing ownership check could expose mail attachments to unauthorized system users. This vulnerability has a CVSS score of 4.3 (Medium), indicating a low attack complexity and requiring low privileges, but only impacts integrity with no confidentiality or availability concerns. There are no known workarounds, and users are advised to upgrade to Nextcloud Mail 1.12.2. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.12.2CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_mail:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 62nd percentile among its peer group of 21,974 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 0.0 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/6600
Issue TrackingPatchThird Party Advisory
github.com / nextcloud/mail/pull/6600/commits/6dd2527be8d4f6788b449c8a8f5577628b990605
PatchThird Party Advisory
github.com / nextcloud/security-advisories/security/advisories/GHSA-xhv7-5mhv-299j
ExploitIssue TrackingThird Party Advisory