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CVE-2023-5505

22
FAUCET Score

CVE-2023-5505 is a Directory Traversal vulnerability affecting the BackWPup plugin for WordPress, specifically versions up to and including 4.0.1. Authenticated attackers can exploit this to store backup files in arbitrary server directories, potentially disabling other websites in shared hosting environments by overwriting their root index.php and .htaccess files. The CVSS score of 6.8 (Medium) indicates a high impact on availability with low attack complexity, requiring high privileges. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.2CPE matchmatch criteria
cpe:2.3:a:inpsyde:backwpup:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 64th percentile among its peer group of 3,562 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/backwpup/trunk/inc/class-page-editjob.php
Product
plugins.trac.wordpress.org / changeset/3000176/backwpup/trunk/inc/class-destination-folder.php
Patch
plugins.trac.wordpress.org / changeset
Product
plugins.trac.wordpress.org / changeset
Patch
wordfence.com / threat-intel/vulnerabilities/id/98085a23-0cb6-442a-a28a-cb5c2890b60d
Third Party Advisory