PhpSpreadsheet vulnerable to XSS in HTML writer via custom number format codes
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PHPOffice | PhpSpreadsheet | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phpoffice | Phpspreadsheet |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-hrmw-qprp-wgmc | PhpSpreadsheet has XSS via number format code with @ text placeholder bypasses htmlspecialchars in HTML writer |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.225% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Phpoffice
Phpoffice phpspreadsheet |
|
| Vendors & Products |
Phpoffice
Phpoffice phpspreadsheet |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The HTML writer skips htmlspecialchars escaping when a cell's formatted value differs from the original value. When a cell has a custom number format containing the text placeholder @ along with any additional literal characters (for example ". @", "@ ", or "x@"), the formatter replaces @ with the cell value and adds the extra characters, causing the formatted value to differ from the original and bypassing HTML escaping entirely. An attacker who can control the cell value and number format of an uploaded spreadsheet that is later converted to HTML and displayed to other users can achieve stored cross-site scripting. This issue is fixed in versions 5.7.0, 3.10.5, 2.4.5, 2.1.16, and 1.30.4. | |
| Title | PhpSpreadsheet vulnerable to XSS in HTML writer via custom number format codes | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_1
|