How severe is CVE-2021-37416?

CVE-2021-37416 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-37416 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37416?

CVE-2021-37416 primarily affects Zohocorp Manageengine Adselfservice Plus. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37416?

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

When was CVE-2021-37416 published?

CVE-2021-37416 was published on 2021-08-30 and last updated on 2026-06-17.

CVE-2021-37416

CVE-2021-37416 is a medium-severity vulnerability in Zohocorp Manageengine Adselfservice Plus with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Zohocorp Manageengine Adselfservice Plus
Published: 2021-08-30
Last modified: 2026-06-17

Description

Zoho ManageEngine ADSelfService Plus version 6103 and prior is vulnerable to reflected XSS on the loadframe page.

Frequently asked questions

What is CVE-2021-37416?: Zoho ManageEngine ADSelfService Plus version 6103 and prior is vulnerable to reflected XSS on the loadframe page.
How severe is CVE-2021-37416?: CVE-2021-37416 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-37416 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37416?: CVE-2021-37416 primarily affects Zohocorp Manageengine Adselfservice Plus. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37416?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-37416 published?: CVE-2021-37416 was published on 2021-08-30 and last updated on 2026-06-17.

References

https://blog.stmcyber.com/vulns/cve-2021-37416/

Affected products (6)

cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:6.1:-:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:6.1:6100:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:6.1:6101:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:6.1:6102:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:6.1:6103:*:*:*:*:*:*

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