# Critical flaw in a web software component: City of Paris websites closed as a precaution

> A critical flaw affects an essential web software component, forcing emergency updates on millions of websites. Several City of Paris websites have been closed as a precaution.

**In brief**: Cyber event (severity: notable) in Paris, first detected on 25 October 2026 at 18:33. Reported by 1 source (1 article), last updated on 25 October 2026 at 18:33.

- Category: Cyber
- Severity: Notable
- Place: Paris
- First detected: 25 October 2026 at 18:33
- Updated: 25 October 2026 at 18:33
- Web page: https://acturadar.com/en/events/505-critical-flaw-in-a-web-software-component-city-of-paris-websites-closed-as-a

## Sources (1 articles)

- [Après PHP, une autre brique essentielle du web doit être mise à jour d’urgence, des millions de sites impactés - Journal du Geek](https://news.google.com/rss/articles/CBMi4wFBVV95cUxOUFcxbmZqaF9EaE5UTXVSS2JPZ2JaLWNzUl9pNW1udXc3d05tMzVsNThNMVhPRk5HbTZyV0dWUndWWG5zOExUZGFTQ0NibXp0cTlpNXprNXM3OE0xVVpYQkN6TkxkMXR5U2xRWFlJbXpCUVB3ZTBmTVl1VXR2QTdlTFpNQnliRnNxS2hJci1GNEpkR2gtTnN6TmpzZ3BoYnplYklZU3lpejJFTlJBRk1YV0JnNXFEWWRzcUwwTUpubHZyWFR4YUY2Sl9lRVpBeDBSeVBuRzRUOG51ZWVKTVZIQTdiNA?oc=5) — Journal du Geek, 25 October 2026 at 18:33

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Cite as: Acturadar, “Critical flaw in a web software component: City of Paris websites closed as a precaution”, https://acturadar.com/en/events/505-critical-flaw-in-a-web-software-component-city-of-paris-websites-closed-as-a
Methodology: https://acturadar.com/en/methodology