CSRF in Backupbliss Backup Migration
CVE-2023-3977
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Backupbliss Backup Migration
- Backupbliss Clone
- Cl272 Enhanced Text Widget — versions 0
- Cl272 Ultimate Posts Widget — versions 0
- Copy-Delete-Posts Duplicate Post
- Inisev Backupbliss – Backup & Migration With Free Cloud Storage — versions 0
- Inisev Duplicate Post — versions 0
- Inisev Enhanced Text Widget
- Inisev Pop-Up — versions 0
- Inisev Redirection — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/ab7c8926-c762-49b1-bc97-4b7a2… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/feedburner-alternative-and-rss-redirect/tags… (Exploit)
- plugins.trac.wordpress.org/browser/ultimate-social-media-icons/tags/2.8.0/banne… (Exploit)
- plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.3.8/banner/misc.php (Exploit)
- plugins.trac.wordpress.org/browser/wp-clone-by-wp-academy/tags/2.3.7/modules/ba… (Exploit)
- plugins.trac.wordpress.org/browser/enhanced-text-widget/tags/1.5.6/banner/misc… (Exploit)
- plugins.trac.wordpress.org/browser/backup-backup/tags/1.2.7/includes/banner/mis… (Exploit)
- plugins.trac.wordpress.org/browser/redirect-redirection/tags/1.1.3/includes/ban… (Exploit)
- plugins.trac.wordpress.org/browser/ultimate-posts-widget/tags/2.2.4/banner/misc… (Exploit)
- plugins.trac.wordpress.org/browser/http-https-remover/tags/3.2.3/banner/misc.php (Exploit)
Frequently asked questions
- What is CVE-2023-3977?
- CVE-2023-3977 is a medium-severity vulnerability in Backupbliss Backup Migration, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-07-28.
- How severe is CVE-2023-3977?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2023-3977 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.