She had long golden hair and pale blue eyes.
Cabriana was not very strong in the One Power. Her level of strength is described by "The Wheel of Time Companion" as 34(22) which is an intermediate level in Aes Sedai hierarchy.
She was Tairen.
She was the Aes Sedai that showed Moiraine Damodred and Siuan Sanche their living quarters just after they were raised to the Blue Ajah. Even then she showed the two newly raised Aes Sedai a submissive attitude.
On the orders of the Dark One, via Shaidar Haran, Semirhage tortured Cabriana for all the information she had on the Salidar Aes Sedai and their involvement with Rand al'Thor. She then killed Cabriana and passed this information on to Halima, who claimed to have been Cabriana's companion. Halima told the Salidar Aes Sedai that Cabriana was killed in a fall.