PrivateBin is an online pastebin where the server has zero knowledge of pasted data. Versions 1.7.7 through 2.0.1 allow persistent HTML injection via the unsanitized attachment filename (attachment_name) when attachments are enabled. An attacker can modify attachment_name before encryption so that, after decryption, arbitrary HTML is inserted unescaped into the page near the file size hint, enabling redirect (e.g., meta refresh) and site defacement and related phishing attacks. Script execution is normally blocked by the recommended Content Security Policy, limiting confidentiality impact. The issue was introduced in 1.7.7 and fixed in 2.0.2. Update to 2.0.2 or later. Workarounds include enforcing the recommended CSP, deploying PrivateBin on a separate domain, or disabling attachments.
Metrics
Affected Vendors & Products
References
History
Wed, 29 Oct 2025 14:15:00 +0000
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ssvc
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Wed, 29 Oct 2025 11:00:00 +0000
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Privatebin
Privatebin privatebin |
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Privatebin
Privatebin privatebin |
Tue, 28 Oct 2025 21:00:00 +0000
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| Description | PrivateBin is an online pastebin where the server has zero knowledge of pasted data. Versions 1.7.7 through 2.0.1 allow persistent HTML injection via the unsanitized attachment filename (attachment_name) when attachments are enabled. An attacker can modify attachment_name before encryption so that, after decryption, arbitrary HTML is inserted unescaped into the page near the file size hint, enabling redirect (e.g., meta refresh) and site defacement and related phishing attacks. Script execution is normally blocked by the recommended Content Security Policy, limiting confidentiality impact. The issue was introduced in 1.7.7 and fixed in 2.0.2. Update to 2.0.2 or later. Workarounds include enforcing the recommended CSP, deploying PrivateBin on a separate domain, or disabling attachments. | |
| Title | PrivateBin persistent HTML injection in attachment filename enables redirect and defacement | |
| Weaknesses | CWE-79 CWE-80 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-10-28T20:47:50.277Z
Updated: 2025-10-29T13:31:54.964Z
Reserved: 2025-10-22T18:55:48.011Z
Link: CVE-2025-62796
Updated: 2025-10-29T13:30:40.820Z
Status : Received
Published: 2025-10-28T21:15:40.760
Modified: 2025-10-28T21:15:40.760
Link: CVE-2025-62796
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