---
cve: "CVE-2026-53992"
severity: "MEDIUM"
cvss: 5.1
epss: "0.2%"
vendor: "projectsend"
kev: false
exploited: false
published: "2026-08-05 16:16:57"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T01:04:21+02:00"
---

# CVE-2026-53992

> 5.1 MEDIUM · 🧪 PoC

## Beschreibung

ProjectSend r2029 contains a reflected cross-site scripting vulnerability in thumbnails-regenerate.php that allows remote attackers to inject arbitrary HTML and JavaScript by supplying unsanitized values in the start_date and end_date GET parameters, which are echoed unescaped into HTML attribute values. Attackers can craft a malicious URL that, when followed by an authenticated victim with edit_settings permissions, executes injected scripts in the application origin to steal session cookies or perform unauthorized actions including user management, file management, and application settings changes.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- b4ad95b1bd3d18b23261b7c3496bfbac8ebfe324 (Commit)

## Referenzen

- <https://github.com/projectsend/projectsend>
- <https://github.com/projectsend/projectsend/commit/b4ad95b1bd3d18b23261b7c3496bfbac8ebfe324>
- <https://www.vulncheck.com/advisories/reflected-xss-in-projectsend-thumbnails-regenerate-php-via-start-date-end-date-parameters>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53992) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_