---
cve: "CVE-2026-113643"
severity: "MEDIUM"
cvss: 5.3
epss: "0.4%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-10-20 19:17:32"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-11-07T21:31:25+01:00"
---

# CVE-2026-113643

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

A vulnerability was found in EspoCRM up to 9.3.10/10.0.10. This affects the function ImageSourceProvider::get of the file application/Espo/Tools/Pdf/Dompdf/ImageSourceProvider.php of the component PDF Rendering Pipeline. Performing a manipulation of the argument ID results in authorization bypass. The attack may be initiated remotely. The patch is named 91a9edbcedb9c7aa8e3d3ac81d8a7acccb99bca2. It is suggested to install a patch to address this issue.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulDB**
- State: PUBLISHED
- Stand: 2026-10-20 18:45:14
- CNA-CVSS: **5.3** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-285** — Improper Authorization
  The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
- **CWE-639** — Authorization Bypass Through User-Controlled Key
  The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

## Angriffsmuster (CAPEC)

- [CAPEC-1 — Accessing Functionality Not Properly Constrained by ACLs](https://capec.mitre.org/data/definitions/1.html) _(Severity: High)_
- [CAPEC-13 — Subverting Environment Variable Values](https://capec.mitre.org/data/definitions/13.html) _(Severity: Very High)_
- [CAPEC-17 — Using Malicious Files](https://capec.mitre.org/data/definitions/17.html) _(Severity: Very High)_
- [CAPEC-39 — Manipulating Opaque Client-based Data Tokens](https://capec.mitre.org/data/definitions/39.html) _(Severity: Medium)_
- [CAPEC-45 — Buffer Overflow via Symbolic Links](https://capec.mitre.org/data/definitions/45.html) _(Severity: High)_
- [CAPEC-104 — Cross Zone Scripting](https://capec.mitre.org/data/definitions/104.html) _(Severity: High)_
- [CAPEC-127 — Directory Indexing](https://capec.mitre.org/data/definitions/127.html) _(Severity: Medium)_
- [CAPEC-402 — Bypassing ATA Password Security](https://capec.mitre.org/data/definitions/402.html)

## ATT&CK-Techniken

- [T1574.010 — Hijack Execution Flow: ServicesFile Permissions Weakness](https://attack.mitre.org/techniques/T1574/010/)
- [T1562.003 — Impair Defenses:Impair Command History Logging](https://attack.mitre.org/techniques/T1562/003/)
- [T1574.006 — Hijack Execution Flow:Dynamic Linker Hijacking](https://attack.mitre.org/techniques/T1574/006/)
- [T1574.007 — Hijack Execution Flow:Path Interception by PATH Environment ](https://attack.mitre.org/techniques/T1574/007/)
- [T1574.005 — Hijack Execution Flow: Executable Installer File Permissions](https://attack.mitre.org/techniques/T1574/005/)
- [T1083 — File and Directory Discovery](https://attack.mitre.org/techniques/T1083/)

## Patch verfügbar (OSV)

- 91a9edbcedb9c7aa8e3d3ac81d8a7acccb99bca2 (Commit)

## Referenzen

- <https://vuldb.com/vuln/422794>
- <https://vuldb.com/vuln/422794/cti>
- <https://vuldb.com/cve/CVE-2026-113643>
- <https://vuldb.com/submit/1010801>
- <https://github.com/espocrm/espocrm/security/advisories/GHSA-r277-qh74-r86f>
- <https://github.com/espocrm/espocrm/security/advisories/GHSA-w46f-mj7x-v5c6>
- <https://github.com/espocrm/espocrm/commit/91a9edbcedb9c7aa8e3d3ac81d8a7acccb99bca2>
- <https://github.com/espocrm/espocrm/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-113643/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_