Is CVE-2023-48307 in the CISA KEV catalog?

No. CVE-2023-48307 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-48307?

CVE-2023-48307 has a CVSS v3 base score of 3.5 (LOW).

What is the EPSS score for CVE-2023-48307?

CVE-2023-48307 has an EPSS score of 0.87% (54th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-48307?

Upgrade mail to 3.3.0 or later.

CVE & CISA-KEV Catalog

CVE-2023-48307

LOW

3.5

CVSS v3

NVD

Description

Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Starting in version 1.13.0 and prior to version 2.2.8 and 3.3.0, an attacker can use an unprotected endpoint in the Mail app to perform a SSRF attack. Nextcloud Mail app versions 2.2.8 and 3.3.0 contain a patch for this issue. As a workaround, disable the mail app.

CWE-918Server-Side Request Forgery (SSRF)

How to fix

Remediation Available

mailNVD

Affected:>= 3.0.0, < 3.3.0Fixed in:3.3.0CVE-2023-48307derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.87%probability of exploitation in 30 days

54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Other references1

hackerone.com

Related Vulnerabilities

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-21893	High	8.2	100%	KEV + Ransom	-
CVE-2021-40438	Critical	9.0	100%	KEV	Fix
CVE-2021-34473	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-26855	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41040	High	8.8	100%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.