MEDIUM KEV Used in ransomware campaigns ⚠
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
Published Mar 27, 2018 ·Due May 10, 2022
6.1
MEDIUMCVSS 3.1
EPSS 29.76%
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 products
No data.
OR
- < 8.7.0
- 8.7.0
- 8.8.0
- 8.8.1
- 8.8.2
- 8.8.3
- 8.8.4
- 8.8.5
- 8.8.6
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
6.1 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
Listed in CISA KEV KEV Used in ransomware campaigns ⚠
Date Added
Apr 19, 2022
Patch Due
May 10, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 13, 2026 · SSVC 2.0.3
29.76% 0.29761
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.29761
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (36 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 29.76% (0.29761) | 98.15th | v5 (v2026.06.15) |
| Sep 20, 2026 | 25.27% (0.25268) | 97.84th | v5 (v2026.06.15) |
| Aug 3, 2026 | 25.23% (0.25231) | 97.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 23.72% (0.23717) | 97.52th | v5 (v2026.06.15) |
| Jun 4, 2026 | 77.02% (0.77015) | 98.98th | v4 (v2025.03.14) |
| Apr 11, 2026 | 79.52% (0.79519) | 99.08th | v4 (v2025.03.14) |
| Apr 3, 2026 | 77.01% (0.77006) | 98.95th | v4 (v2025.03.14) |
| Mar 29, 2026 | 79.58% (0.79581) | 99.08th | v4 (v2025.03.14) |
| Jan 11, 2026 | 63.35% (0.63352) | 98.33th | v4 (v2025.03.14) |
| Dec 25, 2025 | 61.78% (0.61776) | 98.25th | v4 (v2025.03.14) |
| Nov 21, 2025 | 65.90% (0.65900) | 98.43th | v4 (v2025.03.14) |
| Nov 18, 2025 | 25.30% (0.25298) | 95.85th | v4 (v2025.03.14) |
| Nov 12, 2025 | 63.28% (0.63278) | 98.31th | v4 (v2025.03.14) |
| Nov 11, 2025 | 68.52% (0.68518) | 98.53th | v4 (v2025.03.14) |
| Nov 1, 2025 | 76.16% (0.76158) | 98.88th | v4 (v2025.03.14) |
| Oct 12, 2025 | 67.06% (0.67060) | 98.47th | v4 (v2025.03.14) |
| Apr 21, 2025 | 65.61% (0.65605) | 98.35th | v4 (v2025.03.14) |
| Apr 19, 2025 | 67.38% (0.67384) | 98.43th | v4 (v2025.03.14) |
| Apr 16, 2025 | 65.68% (0.65676) | 98.35th | v4 (v2025.03.14) |
| Mar 30, 2025 | 59.36% (0.59359) | 98.06th | v4 (v2025.03.14) |
| Mar 29, 2025 | 55.92% (0.55918) | 97.23th | v4 (v2025.03.14) |
| Mar 17, 2025 | 59.36% (0.59359) | 98.03th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.75% (0.00749) | 81.66th | v3 (v2023.03.01) |
| May 9, 2024 | 0.75% (0.00749) | 80.88th | v3 (v2023.03.01) |
| Oct 21, 2023 | 0.75% (0.00749) | 78.88th | v3 (v2023.03.01) |
| Aug 18, 2023 | 1.06% (0.01060) | 82.31th | v3 (v2023.03.01) |
| Mar 21, 2023 | 1.52% (0.01522) | 84.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.72% (0.01716) | 85.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.93% (0.01935) | 48.26th | v1 |
| Jan 6, 2022 | 1.93% (0.01935) | 47.74th | v1 |
| Sep 1, 2021 | 1.93% (0.01935) | 76.23th | v1 |
| Apr 14, 2021 | 1.93% (0.01935) | 0.00th | v1 |
Weaknesses (1)
References (7)
- http://seclists.org/fulldisclosure/2018/Mar/52 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://www.securityfocus.com/archive/1/541891/100/0/threaded mailing-listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- https://bugzilla.zimbra.com/show_bug.cgi?id=108786 x_refsource_CONFIRMBroken LinkIssue TrackingPermissions Required
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7 x_refsource_CONFIRMPermissions Required
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories x_refsource_CONFIRMVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6882 government-resourceUS Government Resource
- https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2018/Mar/52 | mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory | |
| http://www.securityfocus.com/archive/1/541891/100/0/threaded | mailing-listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry | |
| https://bugzilla.zimbra.com/show_bug.cgi?id=108786 | x_refsource_CONFIRMBroken LinkIssue TrackingPermissions Required | |
| https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7 | x_refsource_CONFIRMPermissions Required | |
| https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories | x_refsource_CONFIRMVendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6882 | government-resourceUS Government Resource | |
| https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html | x_refsource_MISCExploitThird Party Advisory |
Change history (4)
- CISA ADP
- SSVC technical impact changed from partial to
total partial → total
- SSVC technical impact changed from partial to
total
- CISA ADP
- SSVC technical impact changed from total to
partial total → partial
- SSVC technical impact changed from total to
partial
- CISA ADP
- SSVC technical impact changed from partial to
total partial → total
- SSVC technical impact changed from partial to
total
- CISA ADP
- SSVC technical impact changed from total to
partial total → partial
- SSVC technical impact changed from total to
partial
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 27, 2018
Updated Oct 1, 2026
Reserved Feb 9, 2018
Link CVE-2018-6882
CISA Vulnrichment
Updated Aug 13, 2026