How severe is CVE-2021-29502?

CVE-2021-29502 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-29502 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-2021-29502?

CVE-2021-29502 affects Warnsystem Project Warnsystem. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29502?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-29502 published?

CVE-2021-29502 was published on 2021-05-10 and last updated on 2026-06-17.

CVE-2021-29502

CVE-2021-29502 is a high-severity vulnerability in Warnsystem Project Warnsystem with a CVSS 3.x base score of 7.3. 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-94.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Warnsystem Project Warnsystem
Published: 2021-05-10
Last modified: 2026-06-17

Description

WarnSystem is a cog (plugin) for the Red discord bot. A vulnerability has been found in the code that allows any user to access sensible informations by setting up a specific template which is not properly sanitized. The problem has been patched in version 1.3.18. Users should update and type `!warnsysteminfo` to check that their version is 1.3.18 or above. As a workaround users may unload the WarnSystem cog or disable the `!warnset description` command globally.

Frequently asked questions

What is CVE-2021-29502?: WarnSystem is a cog (plugin) for the Red discord bot. A vulnerability has been found in the code that allows any user to access sensible informations by setting up a specific template which is not properly sanitized. The problem has been patched in version 1.3.18. Users should update and type `!warnsysteminfo` to check that their version is 1.3.18 or above. As a workaround users may unload the WarnSystem cog or disable the `!warnset description` command globally.
How severe is CVE-2021-29502?: CVE-2021-29502 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-29502 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-2021-29502?: CVE-2021-29502 affects Warnsystem Project Warnsystem. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29502?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-29502 published?: CVE-2021-29502 was published on 2021-05-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:warnsystem_project:warnsystem:*:*:*:*:*:*:*:*

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