Description
rssant 1.9.0 through 1.9.1 contains an authorization bypass vulnerability that allows unauthenticated attackers to read stories from unpublished feeds through the anonymous publish.story_get endpoint. Because UnionStory.get_by_feed_offset ignores the only_publish flag, attackers can enumerate feed IDs and offsets to retrieve private feed stories.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| anyant | rssant | 1.9.0 – ≤ 1.9.1 | — |
References
- GitHub Issue #155 issue-tracking
- https://github.com/anyant/rssant product
- https://github.com/anyant/rssant/commit/b65336f1414a32a50670ee2ba7e87cb38e0ad47b patch
- https://github.com/anyant/rssant/blob/v1.9.1/rssant_api/models/union_story.py#L197-L200 technical-description
- VulnCheck Advisory: rssant 1.9.0 through 1.9.1 Information Disclosure via publish.story_get Endpoint third-party-advisory