How severe is CVE-2020-1777?

CVE-2020-1777 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-1777 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1777?

CVE-2020-1777 affects Otrs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1777?

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

When was CVE-2020-1777 published?

CVE-2020-1777 was published on 2020-10-15 and last updated on 2026-06-17.

CVE-2020-1777

CVE-2020-1777 is a medium-severity vulnerability in Otrs with a CVSS 3.x base score of 4.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Otrs
Published: 2020-10-15
Last modified: 2026-06-17

Description

Agent names that participates in a chat conversation are revealed in certain parts of the external interface as well as in chat transcriptions inside the tickets, when system is configured to mask real agent names. This issue affects OTRS; 7.0.21 and prior versions, 8.0.6 and prior versions.

Frequently asked questions

What is CVE-2020-1777?: Agent names that participates in a chat conversation are revealed in certain parts of the external interface as well as in chat transcriptions inside the tickets, when system is configured to mask real agent names. This issue affects OTRS; 7.0.21 and prior versions, 8.0.6 and prior versions.
How severe is CVE-2020-1777?: CVE-2020-1777 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-1777 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1777?: CVE-2020-1777 affects Otrs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1777?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-1777 published?: CVE-2020-1777 was published on 2020-10-15 and last updated on 2026-06-17.

References

https://otrs.com/release-notes/otrs-security-advisory-2020-15/

Affected products (1)

cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*

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