Wikimedia timeline up to 1.45.x/1.45.3/1.44.5/1.43.8 scripts/Easytimeline.Pl code injection

Summaryinfo

A vulnerability was found in Wikimedia timeline up to 1.45.x/1.45.3/1.44.5/1.43.8. It has been declared as critical. The affected element is an unknown function of the file scripts/Easytimeline.Pl. The manipulation results in code injection. This vulnerability is reported as CVE-2026-8857. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Wikimedia timeline up to 1.45.x/1.45.3/1.44.5/1.43.8. It has been classified as critical. Affected is some unknown processing of the file scripts/Easytimeline.Pl. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in Wikimedia Foundation timeline. This vulnerability is associated with program files scripts/EasyTimeline.Pl, includes/Timeline.Php. This issue affects timeline: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

The advisory is shared for download at phabricator.wikimedia.org. This vulnerability is traded as CVE-2026-8857 since 05/18/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 1.46.0, 1.45.4, 1.44.6 or 1.43.9 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• Wikimedia

Name

• timeline

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42
• 1.43
• 1.43.0
• 1.43.1
• 1.43.2
• 1.43.3
• 1.43.4
• 1.43.5
• 1.43.6
• 1.43.7
• 1.43.8
• 1.44
• 1.44.0
• 1.44.1
• 1.44.2
• 1.44.3
• 1.44.4
• 1.44.5
• 1.45
• 1.45.0
• 1.45.1
• 1.45.2
• 1.45.3

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

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