CVE-2026-8857
NoneThis vulnerability is associated with program files scripts/EasyTimeline.Pl, includes/Timeline.Php.
Published Jul 1, 2026 · Updated Jul 15, 2026
Key Facts
Routine patching- CVE-2026-8857 is a vulnerability (CVSS 0.0 v4) affecting Mediawiki, mediawiki-1.43 (minimos), mediawiki-1.44 (minimos) and 2 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 2.1% probability of exploitation in the next 30 days.
- Fixed versions are available, including Mediawiki 1.43.9, Mediawiki 1.44.6, Mediawiki 1.45.4.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
CVSS v4
0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS (30-day exploit likelihood)
2.1%
Higher than 81.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
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.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| MediawikiMediawiki | See advisory | 1.43.9 |
| mediawiki-1.43minimos | See advisory | 1.43.9-r0 |
| mediawiki-1.44minimos | See advisory | 1.44.6-r0 |
| mediawiki-1.45minimos | See advisory | 1.45.4-r0 |
| timeline | See advisory | 1.46.0, 1.45.4, 1.44.6, 1.43.9 |
Patched Releases
Mediawiki
1.43.9, 1.44.6, 1.45.4
mediawiki-1.43
1.43.9-r0
mediawiki-1.44
1.44.6-r0
mediawiki-1.45
1.45.4-r0
timeline
1.46.0, 1.45.4, 1.44.6, 1.43.9
Timeline
Publicly disclosed
Jul 1, 2026
Last updated
Jul 15, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
FAQ
Common Questions.
A vulnerability in Wikimedia Foundation timeline.
Affected: Mediawiki; mediawiki-1.43 (minimos); mediawiki-1.44 (minimos), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Mediawiki 1.43.9, Mediawiki 1.44.6, Mediawiki 1.45.4.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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