How severe is CVE-2019-16949?

CVE-2019-16949 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-16949 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16949?

CVE-2019-16949 primarily affects Enghouse Web Chat. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-16949?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-16949 published?

CVE-2019-16949 was published on 2019-11-13 and last updated on 2026-06-17.

CVE-2019-16949

CVE-2019-16949 is a medium-severity vulnerability in Enghouse Web Chat with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Enghouse Web Chat
Published: 2019-11-13
Last modified: 2026-06-17

Description

An issue was discovered in Enghouse Web Chat 6.1.300.31 and 6.2.284.34. A user is allowed to send an archive of their chat log to an email address specified at the beginning of the chat (where the user enters in their name and e-mail address). This POST request can be modified to change the message as well as the end recipient of the message. The e-mail address will have the same domain name and user as the product allotted. This can be used in phishing campaigns against users on the same domain.

Frequently asked questions

What is CVE-2019-16949?: An issue was discovered in Enghouse Web Chat 6.1.300.31 and 6.2.284.34. A user is allowed to send an archive of their chat log to an email address specified at the beginning of the chat (where the user enters in their name and e-mail address). This POST request can be modified to change the message as well as the end recipient of the message. The e-mail address will have the same domain name and user as the product allotted. This can be used in phishing campaigns against users on the same domain.
How severe is CVE-2019-16949?: CVE-2019-16949 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-16949 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16949?: CVE-2019-16949 primarily affects Enghouse Web Chat. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-16949?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-16949 published?: CVE-2019-16949 was published on 2019-11-13 and last updated on 2026-06-17.

References

https://mjlanders.com/2019/11/07/multiple-vulnerabilities-found-in-enghouse-zeacom-web-chat/

Affected products (2)

cpe:2.3:a:enghouse:web_chat:6.1.300.31:*:*:*:*:*:*:*
cpe:2.3:a:enghouse:web_chat:6.2.284.34:*:*:*:*:*:*:*

More vulnerabilities in Enghouse Web Chat

CVE-2019-16948 — Critical (CVSS 9.8): An SSRF issue was discovered in Enghouse Web Chat 6.1.300.31. In any POST request, one can replace the port number at…
CVE-2020-13972 — Medium (CVSS 6.1): Enghouse Web Chat 6.2.284.34 allows XSS. When one enters their own domain name in the WebServiceLocation parameter, the…
CVE-2019-16950 — Medium (CVSS 6.1): An XSS issue was discovered in Enghouse Web Chat 6.1.300.31 and 6.2.284.34. The QueueName parameter of a GET request…
CVE-2019-16951 — Medium (CVSS 5.3): A remote file include (RFI) issue was discovered in Enghouse Web Chat 6.2.284.34. One can replace the localhost…

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