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CVE-2025-59716

32
FAUCET Score

CVE-2025-59716 is a medium-severity vulnerability affecting ownCloud Guests before version 0.12.5, allowing unauthenticated user enumeration. Attackers can exploit insufficient validation in the /apps/guests/register/{email}/{token} endpoint to determine if an email address corresponds to a valid pending guest user. This vulnerability has a CVSS score of 5.3, indicating low impact on confidentiality and no impact on integrity or availability. There is currently no public exploit code available, and no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.12.4CPE matchmatch criteria
cpe:2.3:a:owncloud:guests:*:*:*:*:*:*:*:*

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
0.91%
Probability of exploitation in next 30 days
EPSS Percentile
56.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2025-59716 · Mar 25, 2026
This CVE's current EPSS score of 0.0091 is in the 35th percentile among its peer group of 23,723 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

Remediation records are not available for this CVE.

References

gist.github.com / thesmartshadow/64ae0449e909174d0479a4f23657147f
ExploitThird Party Advisory
github.com / owncloud/guests
Product
marketplace.owncloud.com / apps/guests
Product
yeswehack.com / reports/411806
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