How severe is CVE-2019-18781?

CVE-2019-18781 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-2019-18781 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18781?

CVE-2019-18781 primarily affects Zohocorp Manageengine Adselfservice Plus. In total, 119 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-18781?

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

When was CVE-2019-18781 published?

CVE-2019-18781 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-18781

CVE-2019-18781 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 5.8
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Zohocorp Manageengine Adselfservice Plus
Published: 2019-12-18
Last modified: 2026-06-17

Description

An open redirect vulnerability was discovered in Zoho ManageEngine ADSelfService Plus 5.x before 5809 that allows attackers to force users who click on a crafted link to be sent to a specified external site.

Frequently asked questions

What is CVE-2019-18781?: An open redirect vulnerability was discovered in Zoho ManageEngine ADSelfService Plus 5.x before 5809 that allows attackers to force users who click on a crafted link to be sent to a specified external site.
How severe is CVE-2019-18781?: CVE-2019-18781 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-2019-18781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18781?: CVE-2019-18781 primarily affects Zohocorp Manageengine Adselfservice Plus. In total, 119 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-18781?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18781 published?: CVE-2019-18781 was published on 2019-12-18 and last updated on 2026-06-17.

References

Affected products (119)

cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5000:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5001:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5002:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5010:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5011:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5020:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5021:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5022:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5030:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5032:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5040:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5041:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5100:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5101:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5102:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5103:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5104:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5105:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5106:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5107:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5108:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5109:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5110:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5111:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5112:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5113:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5114:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5115:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5116:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5200:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5201:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5202:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5203:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5204:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5205:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5206:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5207:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5300:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5301:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5302:*:*:*:*:*:*

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Other CWE-601 (Open Redirect) vulnerabilities

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CVE-2020-36912 — Critical (CVSS 9.8): Plexus anblick Digital Signage Management 3.1.13 contains an open redirect vulnerability in the 'PantallaLogin' script…
CVE-2025-43526 — Critical (CVSS 9.8): This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac…
CVE-2025-55031 — Critical (CVSS 9.8): Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An…
CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.

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