CVE-2026-25923 (GCVE-0-2026-25923)
Vulnerability from cvelistv5 – Published: 2026-02-09 21:56 – Updated: 2026-02-11 21:20
VLAI
EPSS
VEX
Title
Phar Deserialization leading to Arbitrary File Deletion in my little forum
Summary
my little forum is a PHP and MySQL based internet forum that displays the messages in classical threaded view. Prior to 20260208.1, the application fails to filter the phar:// protocol in URL validation, allowing attackers to upload a malicious Phar Polyglot file (disguised as JPEG) via the image upload feature, trigger Phar deserialization through BBCode [img] tag processing, and exploit Smarty 4.1.0 POP chain to achieve arbitrary file deletion. This vulnerability is fixed in 20260208.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 21:20 UTC
CWE
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/My-Little-Forum/mylittleforum/… | x_refsource_CONFIRM |
| https://github.com/My-Little-Forum/mylittleforum/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| My-Little-Forum | mylittleforum |
Affected:
< 20260208.1
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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