Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2023-3977: Several plugins for WordPress by Inisev are vulnerable to Cross-Site Request Forgery to unauthorized installat

32
Routine
MEDIUM 4.3UPGRADEUPGRADEUPGRADE

CVE-2023-3977 is a medium-severity flaw (CVSS 4.3) affecting backup migration, clone, duplicate post. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score4.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance0.6% (top 51%)
CISA exploited listNo
WeaknessCWE-352
Published2023-07-28
Last modified2026-06-17
Publisher (CNA): Wordfence · Vendor: backupbliss · copy-delete-posts · inisev

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

backupbliss backup migration UPGRADE
Affected: < 1.2.8
Fixed in: 1.2.8
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy backup-migration || rpm -q backup-migration || backup-migration --version
2. UPGRADE to 1.2.8 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade backup-migration
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade backup-migration
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
backupbliss clone UPGRADE
Affected: < 2.3.8
Fixed in: 2.3.8
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy clone || rpm -q clone || clone --version
2. UPGRADE to 2.3.8 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade clone
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade clone
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
copy-delete-posts duplicate post UPGRADE
Affected: < 1.4.0
Fixed in: 1.4.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy duplicate-post || rpm -q duplicate-post || duplicate-post --version
2. UPGRADE to 1.4.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade duplicate-post
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade duplicate-post
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
inisev enhanced text widget UPGRADE
Affected: < 1.5.8
Fixed in: 1.5.8
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy enhanced-text-widget || rpm -q enhanced-text-widget || enhanced-text-widget --version
2. UPGRADE to 1.5.8 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade enhanced-text-widget
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade enhanced-text-widget
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
inisev redirection UPGRADE
Affected: < 1.1.4
Fixed in: 1.1.4
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy redirection || rpm -q redirection || redirection --version
2. UPGRADE to 1.1.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade redirection
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade redirection
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
inisev rss redirect \& feedburner alternative UPGRADE
Affected: < 3.8
Fixed in: 3.8
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy rss-redirect--feedburner-alternative || rpm -q rss-redirect--feedburner-alternative || rss-redirect--feedburner-alternative --version
2. UPGRADE to 3.8 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade rss-redirect--feedburner-alternative
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade rss-redirect--feedburner-alternative
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-3977?

backup migration: upgrade to 1.2.8; clone: upgrade to 2.3.8; duplicate post: upgrade to 1.4.0. Exact commands for each OS are on this page.

Is CVE-2023-3977 being exploited?

CVE-2023-3977 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-3977 affect?

CVE-2023-3977 affects backup migration, clone, duplicate post. Severity is medium (CVSS 4.3). 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 ac

How urgent is CVE-2023-3977?

Priority 32/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.