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CVE-2023-28645

22
FAUCET Score

CVE-2023-28645 describes a bypass vulnerability in the secure view feature of the Nextcloud richdocuments app, affecting versions prior to 8.0.0-beta.1, 7.0.2, and 6.3.2. An attacker with authenticated access can exploit an unprotected internal API endpoint to bypass security restrictions. This vulnerability carries a CVSS score of 6.5 (Medium), indicating a network-based attack with low complexity that could lead to high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, < 6.3.2CPE matchmatch criteria
cpe:2.3:a:nextcloud:richdocuments:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.2CPE matchmatch criteria
cpe:2.3:a:nextcloud:richdocuments:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
51.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 62nd percentile among its peer group of 21,954 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

docs.nextcloud.com / server/latest/admin_manual/office/configuration.html
Product
github.com / nextcloud/richdocuments/pull/2604
PatchVendor Advisory
github.com / nextcloud/security-advisories/security/advisories/GHSA-95j6-p5cj-5hh5
MitigationVendor Advisory