CVE-2019-13643
Stored XSS in EspoCRM before 5.6.4 allows remote attackers to execute malicious JavaScript and inject arbitrary source code into the target pages.
Does this matter?
Lower severity and a low EPSS score (1.14%). Track it; it rarely justifies an emergency change on its own.
Description
Stored XSS in EspoCRM before 5.6.4 allows remote attackers to execute malicious JavaScript and inject arbitrary source code into the target pages. The attack begins by storing a new stream message containing an XSS payload. The stored payload can then be triggered by clicking a malicious link on the Notifications page.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.14% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- espocrm/espocrm
- Source
- cve@mitre.org
EPSS 1.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/espocrm/espocrm/issues/1349Exploit, Third Party Advisory
- https://github.com/espocrm/espocrm/milestone/64?closed=1Third Party Advisory
- https://github.com/espocrm/espocrm/issues/1349Exploit, Third Party Advisory
- https://github.com/espocrm/espocrm/milestone/64?closed=1Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.