Service disruptions
PHP Issues – Impact on TSG managed services
Last updated: 21 October 2026 18:40
Status: Resolved – All services operational
Overview
On 21 October 2026, PHP-related security issues were identified that potentially affected several websites and applications managed by the TSG.
Initially, temporary service interruptions were anticipated while investigating the impact and implementing the necessary security updates.
However, the required PHP updates became available and were successfully installed on the affected systems. As a result, no downtime was necessary, and all services remained operational throughout the remediation process.
The issue has been resolved, and no further action is currently required.
Affected Services
The following services were identified as potentially affected and have since been updated:
| Service | Description | Current status | Remarks |
|---|---|---|---|
| LimeSurvey | Online survey platform | Updated – Operational | PHP updated successfully |
| www.socsci.ru.nl | Faculty web server | Updated – Operational | Hosts additional PHP-based websites |
| tijdcapsule.ru.nl | WordPress website | Updated – Operational | WordPress / PHP |
| www.dcc.ru.nl | Babybrain website | Updated – Operational | Hosted on www.socsci.ru.nl |
| languageininteraction.nl | WordPress website | Updated – Operational | WordPress / PHP |
Resolution
The following actions were completed:
- Identification: TSG-managed systems were checked for potentially affected PHP installations.
- Impact assessment: The impact on hosted websites and applications was assessed.
- Remediation: Available PHP security updates were installed on the affected systems.
- Verification: The affected services were checked following the updates.
- Continuity: All services are available again, some might suffered some minimal downtime.
Updates
21 October 2026
- 15:15 – Initial investigation started. Several TSG-managed services were identified as potentially affected.
- PHP security updates became available and were applied to the affected systems.
- All affected services were successfully updated.
- Minimal service interruptions were necessary.
- 17:41 – Incident resolved. All services operational.
This incident will be marked as resolved for now.