WP Staging (Free < 3.1.3, Pro < 5.1.3) - Unauthenticated Backup Download

2023-12-0700:00:00

Dmitrii Ignatyev

wordpress

vulnerability

backup download

unauthenticated access

information leakage

AI Score

6.6

Confidence

Low

EPSS

0.001

Percentile

42.6%

JSON

Description The plugin does not prevent visitors from leaking key information about ongoing backups processes, allowing unauthenticated attackers to download said backups later.

The plugin creates temporary cache files when backing up sites, which are publicly accessible to anyone. Said cache files contain critical information (such as a backup's secret ID), allowing attackers to find and download the resulting backup files.

While running a new backup (or one automatically runs!), try to get ahold of the following cache file:

https://vulnerable-site.tld/wp-content/uploads/wp-staging/cache/jobCache_backup_job.cache

Once this is done, you will find the resulting backup file at https://vulnerable-site.tld/wp-content/uploads/wp-staging/backups/vulnerable-site.tld_YYYYMMDD-HHMMSS_SECRETID.wpstg

You can find the date ("YYMMDD"), the time ("HHMMSS") and SECRETID in the information leaked from the cache file.