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CVE-2026-57568— Lychee: Stored XSS via Markdown javascript: Links in Photo and Album Descriptions (Gallery View)

Quick assessment

Affected
LycheeOrg Lychee
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lychee 是一款免费、开源的照片管理工具。在 7.6.0 版本之前，Lychee 允许拥有相册编辑权限的已认证用户将 JavaScript URI 存储在相册或照片的 Markdown 描述中，这是因为配置文件 中启用了 选项。 和 将描述内容转换为 HTML，而画廊组件 、 、 、 和 则通过 指令渲染该 HTML。任何访问者（包括公共相册的未认证访问者）如果点击渲染后的链接，就会在以 Lychee 为源的上下文中执行攻击者控制的 JavaScript 代码，这可能暴露会话数据，或在受害者的上下文中启用已认证

CVSS 5.7 · Medium EPSS 0.28% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
LycheeOrg Lychee < 7.6.0 affected
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I. Basic Information for CVE-2026-57568

Vulnerability Information
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Vulnerability Title
Lychee: Stored XSS via Markdown javascript: Links in Photo and Album Descriptions (Gallery View)
Source: CVE Program / CVE List V5
Vulnerability Description
Lychee is a free, open-source photo-management tool. Prior to 7.6.0, Lychee permits an authenticated user with album-edit permissions to store a javascript URI in an album or photo Markdown description because config/markdown.php enables allow_unsafe_links. app/Http/Resources/Models/Utils/PreformattedPhotoData.php and app/Http/Resources/Models/Utils/PreFormattedAlbumData.php convert the description to HTML, and the gallery components PhotoDetails.vue, Overlay.vue, PhotoThumb.vue, AlbumHero.vue, and AlbumCard.vue render that HTML with v-html. A visitor, including an unauthenticated visitor to a public album, who clicks the rendered link executes attacker-controlled JavaScript in the Lychee origin, which can expose session data or enable authenticated requests in the victim's context. This gallery-view flaw is distinct from CVE-2026-33738, which addressed feed rendering. This issue is fixed in version 7.6.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
LycheeOrg Lychee < 7.6.0 -

II. Public POCs for CVE-2026-57568

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III. Intelligence Information for CVE-2026-57568

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Patches & Fixes for CVE-2026-57568 (2)

Vendor Advisories for CVE-2026-57568 (1)

Vendor Pages for CVE-2026-57568 (1)

Same Patch Batch · LycheeOrg · 2026-10-15 · 10 CVEs total

CVE-2026-62679 8.9 HIGH Lychee: Path traversal in `SecurePathController` allows authenticated arbitrary file read
CVE-2026-77470 8.3 HIGH Lychee: Webshop checkout lets the client override the payment `amount` sent to the gateway
CVE-2026-77466 8.3 HIGH Lychee: Webshop payment bypass via unrestricted "Dummy" gateway selection
CVE-2026-61838 8.2 HIGH Lychee: Album password bypass in ZIP downloads
CVE-2026-61611 7.5 HIGH Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks
CVE-2026-77467 7.1 HIGH Lychee: A single 383-byte PDF causes ~184 seconds of CPU consumption in the real processin
CVE-2026-77468 6.9 MEDIUM Lychee: Missing Authentication for Critical Function and Allocation of Resources Without L
CVE-2026-57569 2.3 LOW Lychee: Distinct post-fix SSRF variant in Photo::fromUrl due to missing IP pinning after D
CVE-2026-61610 2.3 LOW Lychee: unauthenticated photo starring reveals existence of private photos when photos_sta

IV. Related Vulnerabilities

Same product: Lychee
Same vendor: LycheeOrg
Same weakness: CWE-79

V. Comments for CVE-2026-57568

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