CVE-2018-6882

Act now ● On CISA KEV — actively exploited used in ransomware

Actively exploited — on the CISA KEV list.

CVSS base

6.1 MEDIUM

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

EPSS — probability of exploitation (30 days)

25.3%

97.8th percentile

CISA KEV

Listed

Added 2022-04-19 · patch by 2022-05-10

Weakness / dates

CWE-79

Published 2018-03-27 · modified 2026-08-13

CVSS breakdown

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

Attack Vector	N	Network
Attack Complexity	L	Low
Privileges Required	N	None
User Interaction	R	Required
Scope	C	Changed
Confidentiality	L	Low
Integrity	L	Low
Availability	N	None

Timeline

2018-03-27 — Published (NVD)
2022-04-19 — Added to CISA KEV (actively exploited)
2022-05-10 — CISA patch-by deadline
2026-08-13 — Last modified (NVD)

Description

Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment.

Affected

synacor

References

Official: NVD · CVE.org