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Fencer Vulns
medium 5.3

CVE-2026-82841 json

UpdraftPlus 1.23.8 - 1.26.7 - Subscriber+ Remote Storage Credential Disclosure via Migration Notice

published 2026-09-27 43 d ago modified 2026-09-28 42 d ago also EUVD-2026-87887

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

The UpdraftPlus: WP Backup & Migration Plugin WordPress plugin before 1.26.8, UpdraftPlus: WP Backup & Migration Plugin WordPress plugin before 2.26.8.26 does not have any capability check in a routine that outputs its stored remote storage settings into admin pages when the site is left in a particular post-migration state, allowing any authenticated user, such as a subscriber, to retrieve the credentials of the configured backup destinations, such as passwords and secret keys.

Patch / fix

  • Unknown UpdraftPlus: WP Backup & Migration Plugin 1.26.8, 2.26.8.26

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
42 d ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/52f39a82-89ee-43f1-ba9c-3ea646fb0a0e/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Unknown UpdraftPlus: WP Backup & Migration Plugin

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.