Is CVE-2023-6991 in the CISA KEV catalog?

No. CVE-2023-6991 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-6991?

CVE-2023-6991 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2023-6991?

CVE-2023-6991 has an EPSS score of 0.69% (48th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-6991?

Upgrade jsm file get contents\(\) shortcode to 2.7.1 or later.

CVE & CISA-KEV Catalog

CVE-2023-6991

HIGH

8.8

CVSS v3

NVD

Description

The JSM file_get_contents() Shortcode WordPress plugin before 2.7.1 does not validate one of its shortcode's parameters before making a request to it, which could allow users with contributor role and above to perform SSRF attacks.

CWE-918Server-Side Request Forgery (SSRF)

How to fix

Remediation Available

jsm file get contents\(\) shortcodeNVD

Affected:< 2.7.1Fixed in:2.7.1CVE-2023-6991derived 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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.69%probability of exploitation in 30 days

48thpercentile

Moderate risk: more likely to be exploited than 48% of all known CVEs.

References

Exploit1

wpscan.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 2025-06-11.