CVE-2023-6271: Backup Migration Staging < 1.3.6 - Sensitive Data Exposure
Vulnerability summary
CVE-2023-6271 is a critical (CVSS 9.8) vulnerability in backupbliss backup_migration. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 52.1% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 01-01-2024PublishedVulnerability first disclosed.
- 11-06-2025Last modifiedVulnerability information updated.
Description
The Backup Migration WordPress plugin before 1.3.6 stores in-progress backups information in easy to find, publicly-accessible files, which may allow attackers monitoring those to leak sensitive information from the site's backups.
CVSS metrics
3 scores · 3 sources · 1 version- CVE.orgCNA7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NDiffers
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.69% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundExploit Reference (wpscan.com)
Maturity: unknown
Exploit Reference (research.cleantalk.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Backupbliss1 product
- backup_migration< 1.3.6
Unknown1 product
- backup migration< 1.3.6
Wordpress1 product
- backup-backup≤ 1.3.5 (fixed in 1.3.6)
3 vendors · 3 products
References
3 links- wpscan.com/vulnerability/7ac217db-f332-404b-a265-6dc86fe747b9ExploitVDB EntryTechnical DescriptionThird Party Advisory