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VulnerabilityPublished

CVE-2026-86815: BackWPup (WordPress plugin) · Missing Authorization

Affects BackWPup (WordPress plugin)Source CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium : upgrade to 5.7.5 when convenient.

Data as of 27 Oct 2026, 05:11 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.7.5
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade BackWPup (WordPress plugin) to 5.7.5.

Affected software

ProductAffectedFixed in
BackWPupAffected
  • >=5.2.2 <5.7.5
Fixed in
  • 5.7.5

AI-suggested

A fixed version is available at 5.7.5 or later. Users should upgrade BackWPup to version 5.7.5 or above to remediate this vulnerability. No other mitigation guidance is provided.

Description

The BackWPup WordPress plugin before 5.7.5 does not properly restrict access to several of its REST API routes for job, backup-destination, and backup-execution management, allowing users holding a BackWPup WordPress plugin before 5.7.5-defined, administrator-assigned limited role to create and run backup jobs and exfiltrate a full database backup to an attacker-controlled destination.

References

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