SEPTEMBER 17, 2026
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Case File

CVE-2026-55779

MEDIUM · CVSS 5.4 EPSS 0.19% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

Silverstripe Versioned prior to version 3.2.1 is vulnerable due to improper handling of user input in restoration notifications, which can lead to stored JavaScript execution in an administrator's browser. This vulnerability compromises the confidentiality and integrity of the CMS session, potentially allowing attackers to manipulate or access sensitive information. Organizations using affected versions of Silverstripe should prioritize updating to version 3.2.1 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55779
Severity
MEDIUM
CVSS
5.4
EPSS
0.19%
Java

Original NVD Description

Silverstripe Versioned provides versioning for Silverstripe models. Prior to 3.2.1, RestoreAction::getRestoreMessage() in src/RestoreAction.php builds ArchiveAdmin restore notifications rendered as CAST_HTML and inserts $restoredItem->Title, $restoredItem->URLSegment, $restoredItem->CMSEditLink(), and $changedProperty['value'] without applying Convert::raw2xml(). When an administrator restores an archived page containing a crafted title or URL segment, the generated restoration message can execute stored JavaScript in the administrator's browser, compromising the confidentiality and integrity of the CMS session. This issue is fixed in version 3.2.1.