Is CVE-2023-3977 in the CISA KEV catalog?

No. CVE-2023-3977 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-3977?

CVE-2023-3977 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2023-3977?

CVE-2023-3977 has an EPSS score of 0.51% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-3977?

Upgrade backup migration to 1.2.8 or later. Fixes are available for 10 affected products.

CVE & CISA-KEV Catalog

CVE-2023-3977

MEDIUM

4.3

CVSS v3

NVD

Description

Several plugins for WordPress by Inisev are vulnerable to Cross-Site Request Forgery to unauthorized installation of plugins due to a missing nonce check on the handle_installation function that is called via the inisev_installation AJAX aciton in various versions. This makes it possible for unauthenticated attackers to install plugins from the limited list via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CWE-352Cross-Site Request Forgery

How to fix

Remediation Available

backup migrationNVD

Affected:< 1.2.8Fixed in:1.2.8CVE-2023-3977derived from NVD

cloneNVD

Affected:< 2.3.8Fixed in:2.3.8CVE-2023-3977derived from NVD

duplicate postNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-3977derived from NVD

enhanced text widgetNVD

Affected:< 1.5.8Fixed in:1.5.8CVE-2023-3977derived from NVD

pop-upNVD

Affected:< 1.2.0Fixed in:1.2.0CVE-2023-3977derived from NVD

redirectionNVD

Affected:< 1.1.4Fixed in:1.1.4CVE-2023-3977derived from NVD

rss redirect \& feedburner alternativeNVD

Affected:< 3.8Fixed in:3.8CVE-2023-3977derived from NVD

social media share buttons \& social sharing iconsNVD

Affected:< 3.5.8Fixed in:3.5.8CVE-2023-3977derived from NVD

ssl mixed content fixNVD

Affected:< 3.2.4Fixed in:3.2.4CVE-2023-3977derived from NVD

ultimate posts widgetNVD

Affected:< 2.2.5Fixed in:2.2.5CVE-2023-3977derived 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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.51%probability of exploitation in 30 days

40thpercentile

Low risk: more likely to be exploited than 40% of all known CVEs.

References

Related Vulnerabilities

Other CWE-352 (Cross-Site Request Forgery) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-6277	High	8.8	100%	KEV	-
CVE-2014-0054	Medium	6.8	91%	-	Fix
CVE-2013-6429	Medium	6.8	90%	-	Fix
CVE-2022-41622	High	8.8	88%	-	-
CVE-2018-7700	High	8.8	75%	-	-
CVE-2015-2295	Medium	6.8	66%	-	-

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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 2026-04-08.