CVE-2018-12587

Name: CVE-2018-12587
Creator: NVD / NIST
Published: 2018-08-13T17:29:00.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.81%

Last modified Jun 17, 2026

CVE-2018-12587 is a vulnerability of currently unknown severity. A cross-site scripting (XSS) vulnerability was found in valeuraddons German Spelling Dictionary v1.3 (an Opera Browser add-on). Instead of providing text for a spelling check, remote attackers may inject arbitrary web script or HTML via the ajax query parameter in the URL Address Bar.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability was found in valeuraddons German Spelling Dictionary v1.3 (an Opera Browser add-on). Instead of providing text for a spelling check, remote attackers may inject arbitrary web script or HTML via the ajax query parameter in the URL Address Bar.

Metrics

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
German Spelling Dictionary Project	German Spelling Dictionary	1.3

References

https://metamorfosec.com/Files/Advisories/METS-2018-003-A_XSS_Vulnerability_in_German_Spelling_Dictionary_1.3.txtThird Party Advisory
https://www.openbugbounty.org/reports/610381/Third Party Advisory
https://metamorfosec.com/Files/Advisories/METS-2018-003-A_XSS_Vulnerability_in_German_Spelling_Dictionary_1.3.txtThird Party Advisory
https://www.openbugbounty.org/reports/610381/Third Party Advisory

Timeline

Published: Aug 13, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12587?

How severe is CVE-2018-12587?

Severity scoring for CVE-2018-12587 is pending analysis. The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12587?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12587?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST