Information Disclosure in UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin) (CVE-2026-82841)
Summary
Vulnerability in UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin) (CVE-2026-82841). Confidential information can be exposed externally.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-82841 has been found in UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin).
Confidential information can be exposed externally. CVSS score: 5.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin) CVE-2026-82841" on the vendor's site.
CVE-2026-82841 (UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin)) — CWE-200 / CVSS v3 5.3
Attack vector: remote (network-reachable) / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Information disclosure (CWE-200) exists in UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin).
Check the vendor advisory for the affected versions of UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin).
Severity: Medium (CVSS 5.3/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで UpdraftPlus: WP Backup & Migration Plugin (WordPress plugin) を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- web contact@wpscan.com
- web nvd.nist.gov
- web wpscan.com
- web github.com