CVE-2023-25575: API Platform Core is the server component of API Platform: hypermedia and GraphQL APIs.

API Platform Core is the server component of API Platform: hypermedia and GraphQL APIs.

API Platform Core is the server component of API Platform: hypermedia and GraphQL APIs. Resource properties secured with the `security` option of the `ApiPlatform\Metadata\ApiProperty` attribute can be disclosed to unauthorized users. The problem affects most serialization formats, including raw JSON, which is enabled by default when installing API Platform. Custom serialization formats may also be impacted. Only collection endpoints are affected by the issue, item endpoints are not. The JSON-LD format is not affected by the issue. The result of the security rule is only executed for the first item of the collection. The result of the rule is then cached and reused for the next items. This bug can leak data to unauthorized users when the rule depends on the value of a property of the item. This bug can also hide properties that should be displayed to authorized users. This issue impacts the 2.7, 3.0 and 3.1 branches. Please upgrade to versions 2.7.10, 3.0.12 or 3.1.3. As a workaround, replace the `cache_key` of the context array of the Serializer inside a custom normalizer that works on objects if the security option of the `ApiPlatform\Metadata\ApiProperty` attribute is used.

Description from the National Vulnerability Database, published by GitHub

What it means for a small business

If your business uses core, install the vendor's update. If you're not sure whether you use it, ask whoever manages your computers.

How likely is an attack? The Exploit Prediction Scoring System, run by FIRST (the global association of security response teams), puts the odds of this one being exploited in the next 30 days at 0.60%, higher than 48% of CVEs. That’s low, but low isn’t zero, and the odds jump the day someone publishes an exploit. Scored October 29, 2026, updated daily.

Check your own setup

Website check: reads what your site runs from the outside (WordPress version, plugins it can see, old server software) and matches it against this database.
Server check: what your web server says about itself, and whether that version has known flaws.

Sources

Part of the Huttenlocher Technologies vulnerability database, refreshed twice a day from CISA and the NVD. The title, category and plain-language guidance are ours; check the linked record before acting on a detail. This is general guidance, not a review of your systems.

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