CVE-2018-6882

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2022-04-19. Federal remediation due 2022-05-10. Known ransomware campaign use: reported by CISA.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

29.76% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 98.1% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-01.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-03-27 16:00Z8 YR AGO

Last updated

2026-10-01 19:33Z28 DAYS AGO

Reserved

2018-02-09

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.2

Document digest

a5eaea21795928a77b3fd9199aa9b3df2c5a431bf1bf4b6945366d5230b3bc3e

• seclists.org20180324 Cross-Site Scripting vulnerability in Zimbra Collaboration Suite due to the way it handles attachment linkshttp://seclists.org/fulldisclosure/2018/Mar/52mailing-listx_refsource_FULLDISC
• www.securify.nlhttps://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.htmlx_refsource_MISC
• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7x_refsource_CONFIRM
• bugzilla.zimbra.comhttps://bugzilla.zimbra.com/show_bug.cgi?id=108786x_refsource_CONFIRM
• www.securityfocus.com20180324 Cross-Site Scripting vulnerability in Zimbra Collaboration Suite due to the way it handles attachment linkshttp://www.securityfocus.com/archive/1/541891/100/0/threadedmailing-listx_refsource_BUGTRAQ
• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Zimbra_Security_Advisoriesx_refsource_CONFIRM
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6882government-resource