CVE Explorer
CVE-2026-4853
The JetBackup – Backup, Restore & Migrate plugin for WordPress is vulnerable to Path Traversal leading to Arbitrary Directory Deletion in versions up to and including 3.1.19.8. This is due to insufficient input validation on the fileName parameter in the file upload handler. The plugin sanitizes the fileName parameter using sanitize_text_field(), which removes HTML tags but does not prevent path traversal sequences like '../'. The unsanitized filename is then directly concatenated in Upload::get
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"JetBackup – Backup, Restore & Migrate","vendor":"backupguard","versions":[{"lessThanOrEqual":"3.1.19.8","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":4.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-22","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/problemTypes/0/descriptions/0
Source references
8 source assertions{"url":"https://plugins.trac.wordpress.org/browser/backup/tags/3.1.17.5/src/JetBackup/Ajax/Calls/AddToQueue.php#L244"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/6
{"url":"https://plugins.trac.wordpress.org/browser/backup/tags/3.1.17.5/src/JetBackup/Ajax/Calls/AddToQueue.php#L64"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/4
{"url":"https://plugins.trac.wordpress.org/browser/backup/tags/3.1.17.5/src/JetBackup/Upload/Upload.php#L66"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/backup/trunk/src/JetBackup/Ajax/Calls/AddToQueue.php#L244"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/5
{"url":"https://plugins.trac.wordpress.org/browser/backup/trunk/src/JetBackup/Ajax/Calls/AddToQueue.php#L64"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/backup/trunk/src/JetBackup/Upload/Upload.php#L66"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3495633%40backup&new=3495633%40backup&sfp_email=&sfph_mail="}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/7
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/4aa0fa80-05dd-4fe1-b7b5-7ed0cf13053c?source=cve"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2c5d2385a2c3a51ea33ed07c666b20e955c78f8488afbfea9a06850e54634b67 · sha256:59f9b00737827ef3… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.