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CVE-2023-48308

20
FAUCET Score

CVE-2023-48308 is a medium-severity vulnerability affecting the Nextcloud Calendar app (versions prior to 4.5.3). An authenticated attacker can trigger an exception while editing a calendar appointment, leading to the exposure of server stack traces and internal file paths. This vulnerability has a CVSS score of 6.5, indicating a network-based attack with low complexity and high confidentiality impact, but no integrity or availability impact. There is currently no public exploit code, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, < 4.5.3CPE matchmatch criteria
cpe:2.3:a:nextcloud:calendar:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.5LOW

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 52nd percentile among its peer group of 21,958 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/calendar/pull/5553
PatchVendor Advisory
github.com / nextcloud/security-advisories/security/advisories/GHSA-fv3c-qvjr-5rv8
Vendor Advisory