CVE-2025-27915

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-27915
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27915.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-27915
Published
2025-03-12T15:15:39Z
Modified
2025-11-13T14:46:43.952583Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A stored cross-site scripting (XSS) vulnerability exists in the Classic Web Client due to insufficient sanitization of HTML content in ICS files. When a user views an e-mail message containing a malicious ICS entry, its embedded JavaScript executes via an ontoggle event inside a <details> tag. This allows an attacker to run arbitrary JavaScript within the victim's session, potentially leading to unauthorized actions such as setting e-mail filters to redirect messages to an attacker-controlled address. As a result, an attacker can perform unauthorized actions on the victim's account, including e-mail redirection and data exfiltration.

References

Affected packages

Git / github.com/zimbra/zm-build

Affected ranges

Type
GIT
Repo
https://github.com/zimbra/zm-build
Events
Introduced
b68c7b31a1d94f94903a79c53f1bd316b792de1d
Fixed
c0b92ff9ecea256518a3d205c7fe1e36ec776e2d

Affected versions

10.*

10.0.0-GA
10.0.1
10.0.4
10.0.5
10.0.6
10.0.9

Git / github.com/zimbra/zm-mailbox

Affected ranges

Type
GIT
Repo
https://github.com/zimbra/zm-mailbox
Events
Introduced
8033bd1ec9d7211c2eb5fa71aeb3b4073a8dc160
Fixed
f71bb9e0fc4367158daab23460145facb880685b

Affected versions

10.*

10.0.0-GA
10.0.1
10.0.11
10.0.12
10.0.2
10.0.5
10.0.6
10.0.7
10.0.8
10.0.9

Database specific

vanir_signatures

[
    {
        "deprecated": false,
        "source": "https://github.com/zimbra/zm-mailbox/commit/f71bb9e0fc4367158daab23460145facb880685b",
        "id": "CVE-2025-27915-204903a0",
        "signature_version": "v1",
        "target": {
            "function": "isRegistered",
            "file": "store/src/java/com/zimbra/cs/account/ZimbraAuthToken.java"
        },
        "signature_type": "Function",
        "digest": {
            "function_hash": "147912439549378573183391761697496305370",
            "length": 440.0
        }
    },
    {
        "deprecated": false,
        "source": "https://github.com/zimbra/zm-mailbox/commit/f71bb9e0fc4367158daab23460145facb880685b",
        "id": "CVE-2025-27915-5b50a674",
        "signature_version": "v1",
        "target": {
            "function": "register",
            "file": "store/src/java/com/zimbra/cs/account/ZimbraAuthToken.java"
        },
        "signature_type": "Function",
        "digest": {
            "function_hash": "335162369327712599477812998866283790401",
            "length": 553.0
        }
    },
    {
        "deprecated": false,
        "source": "https://github.com/zimbra/zm-mailbox/commit/f71bb9e0fc4367158daab23460145facb880685b",
        "id": "CVE-2025-27915-bf6cb457",
        "signature_version": "v1",
        "target": {
            "file": "store/src/java/com/zimbra/cs/account/ZimbraAuthToken.java"
        },
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "209130410428302556674071306187255704306",
                "225310395921744025336948292490858461814",
                "202190201291662939402323303269050111616",
                "132751591392474821768102870026283226265",
                "172346609573432209325122272615371308482",
                "222857540467584160731142151123556065446",
                "114702154303227773654858857858893039850",
                "115463294749429024956935728040097366866",
                "254866902658856906789416304683651989454",
                "52368022671279424149706331470829537460",
                "3082333680933600016665998035313867610",
                "228023414434089579059873133297067383621",
                "221657657252478192217487153310191495491",
                "167520746795132071856396247014516156578"
            ]
        }
    }
]