CVE-2026-86826
Last modified
CVE-2026-86826 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. The BackWPup WordPress plugin before 5.7.7 does not properly restrict web access to the working directory it uses during backup restores, allowing unauthenticated attackers, on webservers that do not honour .htaccess rules such as NGINX, to download the full backup archive (database dump and site files, including credentials and secret keys) left behind by an interrupted restore.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
The BackWPup WordPress plugin before 5.7.7 does not properly restrict web access to the working directory it uses during backup restores, allowing unauthenticated attackers, on webservers that do not honour .htaccess rules such as NGINX, to download the full backup archive (database dump and site files, including credentials and secret keys) left behind by an interrupted restore.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Unknown | BackWPup | < 5.7.7 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-86826?
How severe is CVE-2026-86826?
How do I fix CVE-2026-86826?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-86817The Five Star Business Profile and Schema WordPress plugin b…4.9
- CVE-2026-86818fast-uri is a dependency-free RFC 3986 URI parser for Node.j…4.8
- CVE-2026-86819Waves Central for macOS contains a local privilege escalatio…7.1
- CVE-2026-8682The 3D Viewer – 3D Model Viewer – Augmented Reality – Virtua…4.3
- CVE-2026-86823The Newsletter WordPress plugin before 9.3.7 does not valid…5.3
- CVE-2026-86824The Newsletter WordPress plugin before 9.3.8 does not gener…4.8
- CVE-2026-86827The BackWPup WordPress plugin before 5.7.7 does not verify …5.3
- CVE-2026-86828The BackWPup WordPress plugin before 5.7.7 does not properl…6.6
- CVE-2026-8683Mattermost Desktop App versions <=6.1 5.5.13.0 fail to accou…6.5
- CVE-2026-86830Incorrect privilege assignment in Temporary Elevated Access …7.2
- CVE-2026-86831Improper validation of pod identifier uniqueness in aws-netw…8.7
- CVE-2026-86832The MetForm WordPress plugin before 4.3.1 does not properly…5.3
Are you affected by CVE-2026-86826?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
