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CVE-2023-3977

17
FAUCET Score

CVE-2023-3977 is a Cross-Site Request Forgery (CSRF) vulnerability affecting several WordPress plugins by Inisev, including backupbliss, copy-delete-posts, inisev, mypopups, and ultimatelysocial. This flaw allows unauthenticated attackers to install plugins from a limited list on a vulnerable site. The vulnerability stems from a missing nonce check in the handle_installation function, which is triggered via an AJAX action. The vulnerability has a CVSS score of 4.3 (Medium), indicating a low potential impact (unauthorized installation of plugins) with a network attack vector and low attack complexity, but requiring user interaction (UI:R). While the impact is limited to unauthorized plugin installations, it could potentially lead to further compromise if a malicious plugin were installed. Currently, there is no evidence of active exploitation, nor is there any public exploit code available (Metasploit, Nuclei, ExploitDB). Community discussion and media coverage for this CVE are also minimal, suggesting low awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.8CPE matchmatch criteria
cpe:2.3:a:backupbliss:backup_migration:*:*:*:*:*:wordpress:*:*
< 2.3.8CPE matchmatch criteria
cpe:2.3:a:backupbliss:clone:*:*:*:*:*:wordpress:*:*
< 1.4.0CPE matchmatch criteria
cpe:2.3:a:copy-delete-posts:duplicate_post:*:*:*:*:*:wordpress:*:*
< 1.5.8CPE matchmatch criteria
cpe:2.3:a:inisev:enhanced_text_widget:*:*:*:*:*:wordpress:*:*
< 1.1.4CPE matchmatch criteria
cpe:2.3:a:inisev:redirection:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 43rd percentile among its peer group of 26,221 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/backup-backup/tags/1.2.7/includes/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/backup-backup/tags/1.2.8/includes/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/copy-delete-posts/tags/1.3.8/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/copy-delete-posts/tags/1.4.0/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/enhanced-text-widget/tags/1.5.6/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/enhanced-text-widget/tags/1.5.7/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/feedburner-alternative-and-rss-redirect/tags/3.7/modules/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/http-https-remover/tags/3.2.3/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/pop-up-pop-up/tags/1.1.9/modules/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/pop-up-pop-up/tags/1.2.0/modules/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/redirect-redirection/tags/1.1.3/includes/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/ultimate-posts-widget/tags/2.2.4/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/ultimate-posts-widget/tags/2.2.5/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/ultimate-social-media-icons/tags/2.8.0/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/ultimate-social-media-icons/tags/2.8.2/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/ultimate-social-media-plus/tags/3.5.7/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/wp-clone-by-wp-academy/tags/2.3.7/modules/banner/misc.php
Exploit
plugins.trac.wordpress.org / browser/wp-clone-by-wp-academy/tags/2.3.8/modules/banner/misc.php
Exploit
plugins.trac.wordpress.org / changeset/2944041/ultimate-social-media-plus/tags/3.5.8/banner/misc.php
Patch
plugins.trac.wordpress.org / changeset
Patch
plugins.trac.wordpress.org / changeset
Patch
plugins.trac.wordpress.org / changeset
Patch
wordfence.com / threat-intel/vulnerabilities/id/ab7c8926-c762-49b1-bc97-4b7a2f4f97fc
Third Party Advisory