OrdaSoft Gallery Extension up to 6.2.6 Upload saveWatermark unrestricted upload

Summaryinfo

A vulnerability identified as problematic has been detected in OrdaSoft Gallery Extension up to 6.2.6. This affects the function saveWatermark of the component Upload Handler. The manipulation leads to unrestricted upload. This vulnerability is listed as CVE-2026-88857. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OrdaSoft Gallery Extension up to 6.2.6. This issue affects the function saveWatermark of the component Upload Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7 - The extensions saveWatermark() copied an uploaded file into a web-accessible directory using the client-supplied filename exactly as sent, with no extension check, no content check, and no filename sanitisation of any kind. An authenticated core.manage user could upload a .php file disguised with an image Content-Type header and execute it directly by requesting the resulting path.

The advisory is shared at OrdaSoft.com. The identification of this vulnerability is CVE-2026-88857 since 09/10/2026. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/21/2026). MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-83768). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Photo Gallery Software

Vendor

• OrdaSoft

Name

• Gallery Extension

Version

• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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