How severe is CVE-2021-34187?

CVE-2021-34187 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-34187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34187?

CVE-2021-34187 affects Chamilo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34187?

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

When was CVE-2021-34187 published?

CVE-2021-34187 was published on 2021-06-28 and last updated on 2026-06-17.

CVE-2021-34187

CVE-2021-34187 is a critical-severity vulnerability in Chamilo with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Chamilo
Published: 2021-06-28
Last modified: 2026-06-17

Description

main/inc/ajax/model.ajax.php in Chamilo through 1.11.14 allows SQL Injection via the searchField, filters, or filters2 parameter.

Frequently asked questions

What is CVE-2021-34187?: main/inc/ajax/model.ajax.php in Chamilo through 1.11.14 allows SQL Injection via the searchField, filters, or filters2 parameter.
How severe is CVE-2021-34187?: CVE-2021-34187 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-34187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34187?: CVE-2021-34187 affects Chamilo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-34187 published?: CVE-2021-34187 was published on 2021-06-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chamilo:chamilo:*:*:*:*:*:*:*:*

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