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CVE-2023-0958: Several plugins for WordPress by Inisev are vulnerable to unauthorized installation of plugins due to a missin

28
Routine
MEDIUM 4.3UPGRADEUPGRADEUPGRADE

CVE-2023-0958 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 unauthorized installation of plugins due to a missing capability check on the handle_installation function that is called via the inisev_installation AJAX aciton in various versions. This makes it possible for authenticated attackers with minimal permissions, such as subscribers, to install select plugins from Inisev on vulnerable sites. CVE-2023-38514 appears to be a duplicate of this vul

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score4.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.7% (top 47%)
CISA exploited listNo
WeaknessCWE-862
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-2023-0958?

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-2023-0958 being exploited?

CVE-2023-0958 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-2023-0958 affect?

CVE-2023-0958 affects backup migration, clone, duplicate post. Severity is medium (CVSS 4.3). Several plugins for WordPress by Inisev are vulnerable to unauthorized installation of plugins due to a missing capability check on the handle_installation function that is called via the inisev_installation AJAX aciton in various versions.

How urgent is CVE-2023-0958?

Priority 28/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities

Related CVEs

References

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