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    CVE-2026-82377

    Missing Authorization in Apache Roller 6.1.5 allows an authenticated user to read, modify, or delete weblog content belonging to other weblogs through the legacy XML-RPC Blogger and MetaWeblog APIs, because the handlers authenticate the caller but do not verify the caller's permission on the weblog or entry actually affected. Only installations that enable the non-default global XML-RPC setting are affected; the per-weblog API flag defaults to enabled for UI-created weblogs. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which applies an explicit per-method permission check, or to keep the XML-RPC feature disabled.

    Published:Sep 28, 2026
    Last Modified:Sep 29, 2026
    EPS:Sep 28, 2026
    EPSS Score:0.00535
    CVSS Score:9.9

    Affected Products

    Vendor
    Apache
    Product
    Roller

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-86507 (CVSS 6.1) — Improper neutralization of input in Apache Roller 6.1.5 allows an anonymous remote attacker to store a crafted…
    CVE-2026-82379 (CVSS 7.7) — Authentication Bypass by Capture-replay in Apache Roller 6.1.5 allows an attacker who captures a valid WSSE di…
    CVE-2026-82380 (CVSS 8.1) — Cross-Site Request Forgery (CSRF) in Apache Roller 6.1.5 allows a remote attacker to cause a logged-in user to…
    CVE-2026-82381 (CVSS 5.4) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Roller 6.1.5 al…
    CVE-2026-82382 (CVSS 6.1) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Roller 6.1.5 al…
    CVE-2026-82383 (CVSS 8.2) — Missing Authentication for Critical Function in Apache Roller 6.1.5 allows an unauthenticated remote attacker …
    CVE-2026-82384 (CVSS 9.8) — Deserialization of Untrusted Data in Apache Roller 6.1.5 allows an unauthenticated remote attacker to cause de…
    CVE-2026-82375 (CVSS 7.4) — Server-Side Request Forgery (SSRF) in Apache Roller 6.1.5 allows an authenticated user with entry-editing righ…
    CVE-2026-82376 (CVSS 7.7) — Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a user with entry-editing …
    CVE-2026-82378 (CVSS 9) — Incorrect Authorization in the OAuth 1.0a authorization endpoint of Apache Roller 6.1.5 allows an unauthentica…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High